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15 tháng 7 2018

123456789+123456780=9

15 tháng 7 2018

123456789-123456780=9

6 tháng 7 2018

1 ) John isn't content with his present salary

a. excited about      b.satisfied with        c. disappointed aboutd       d. interested in

2)  We ..................... the seedlings into peaty soil

a. take         b. plough       c. raise              d.transplant

17 tháng 5 2018

Các thì: Hiện tại đơn, quá khứ đơn, tương lai đơn, quá khứ tiếp diễn, quá khứ hoàn thành, hiện tại tiếp diễn, hiện tại hoàn thành, tương lai gần, tương lai tiếp diễn

Các kiểu câu: khẳng định, phủ định, nghi vấn, cảm thán, đề nghị, ước

20 tháng 5 2018

Fill in each blank with one suitable word.

Energy is one of the problems that many people are interested in. It is not an unfamiliar word. It is heard, said, discussed day after day. It is close to everyone's (29)daily life. You turn on the lamp and it is energy that gives you light. You turn on a TV and it is energy that gives you pictures and sound. You ride a motorcycle and it is energy that gives you movement. You (30)cook your meals and it is energy that gives you heat to boil rice.

The problem is that the demand for energy is rising and that the price of energy isgetting (31)higher and higher. The supply of energy on earth is limited. It cannot provide us all forever. The shortage of energy in the future is inevitable. Therefore, (32)saving energy is a must if we want to continue to live in a safe and sound world.

VI. Follow the instructions in parentheses.People make a lot of beautiful toys from recycled plastic. ( chuyển sang câu bị động )        ............................................................................................................................................................................................       2. We heard about your father's illness. We were sorry. ( Nối cặp câu bên sử dụng " adj + to-infinitive " )     ...
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VI. Follow the instructions in parentheses.

  1. People make a lot of beautiful toys from recycled plastic. ( chuyển sang câu bị động )

        ............................................................................................................................................................................................

       2. We heard about your father's illness. We were sorry. ( Nối cặp câu bên sử dụng " adj + to-infinitive " )

       ...............................................................................................................................................................................................

      3. The window has been repaired. It was broken last night. ( Nối cặp câu bên sử dụng " past participle [v-ed]" )

      ................................................................................................................................................................................................

     4. when/ he/ carry/ a suitcase/ he/ drop/ it/ on his foot. ( Viết thành câu hoàn chỉnh dựa vào những từ gợi ý )

     .................................................................................................................................................................................................

    5. I'm learning English. I want to read books in English. ( Nối cặp câu bên sử dụng " in order to ")

    .....................................................................................................................................................................................................

1
30 tháng 4 2018

1.A lot of beautiful toys from recycled plas are made by peole.

2.We were sorry to hear that your father is ill.

4.When he was carrying a suicase,he dropped it on his foot.

5.I wanted to read book in english in order to i'm learning english.

25 tháng 4 2018

moi lop 5 thoi sao ma biet -.-

17 tháng 4 2018

On Sunday morning, I and my friends from all over the world had a beautiful trip on the beautiful Amazon River, drifted to the Navy Headquarters and then fell to the legendary Niagara Falls. In the majes Viking village, Dreaming, drinking and eating ... grilled chicken delicious dai đao.Ai also feel tired but the atmosphere is very fun.We together sang heavenly birds, wild animals become gentle, as well as the nature. Tomorrow, I am surprised, I found myself in the yard ... bed.Have just one ... Well, 3 seconds to school, I go here.

tk nha

17 tháng 4 2018

Cái này dịch rất đơn giản:

I don't know.

10 tháng 3 2018

Ta có :   \(3n-1⋮n-1\)

\(\Leftrightarrow3n-3+2⋮n-1\)

\(\Leftrightarrow3.\left(n-1\right)+2⋮n-1\)

\(\Leftrightarrow2⋮n-1\)

\(\Leftrightarrow n-1\inƯ\left(2\right)\)

Mà \(Ư\left(2\right)=\left\{1;-1;2;-2\right\}\)

\(\Rightarrow n-1\in\left\{1;-1;2;-2\right\}\)

\(\Rightarrow n\in\left\{2;0;3;-1\right\}\)

Vậy \(n\in\left\{2;0;3;-1\right\}\)

Chúc bạn học giỏi !!! Tham khảo cách của mk nha !!! 

10 tháng 3 2018

3n-1 chia het cho n-1

=> 3(n-1)+2 chia het cho n-1

=> n-1 thuoc uoc cua 2

=> n=0;2;3;-1

25 tháng 1 2018

???????????????????

13 tháng 2 2018

qwreythfvbjmklnb dhgjljdsarsgjhbfxefdgdfhfj,jjfghki7uytgrdsfffffhjjhb?