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20 tháng 5 2021

Part 1

1 friendliness

2 were

3 after

4 written

5 correspond

6 which

Part2

1 - D

2 - C

3 - A

4 - G

5 - E

6 - F

Part 3

1 should do

2 visiting

3 cut

4 made

5 has learnt

6 modernize

7commercial

8 untreated

Part 4

1 will => would

2 carefully => careful

Part 5

1 I would pay a visit to 

2 planted trees along the

3 going to be sent

4 which I borrowed from

Part 6

1 subtances

2 Industrial

3 frequently

4 that

 

20 tháng 5 2021

Part 1

1 friendliness

2 were 

3 after

4 written

5 correspond

6 which

Part 2

1D 2C 3A 4G 5E 6F

Part3

1 have to do

2 visiting

3 cut

4 was making

5 has learnt

6 modernize

7 commercially

8 mistreated

Part 4

1 will -> would

2 carefully -> careful

Part 5

1 to pay a visit

2 planted trees along the

3 going to be sent 

4 that I borrowed from

Part 6

1 substances

2 industrial

3 naturally

4 that 

Part 7

1F 2F 3T 4T

20 tháng 5 2021

part 1

1 where

2 which

3 important

4 traditional

5 of

6 even though

part 2

1G 2A 3F 4D 5C 6B

part 3

1 not watching

2 would arrive

3 would pay

4 playing

5 has worked

6 harmed

7 unsuccessful

 8 richly

part 4

1 internation -> international

2 write -> be written

part 5

1 have to be taken

2 spends 2 hours doing

3 unless someone puts

4 which I visited 

part 6

1 natural

2 economically

3 resources

4 before

part 7

1T 2T 3F 4T

28 tháng 10 2021

\(\Leftrightarrow\sqrt{x+4}\left(\sqrt{x-4}-2\right)=0\)

\(\Leftrightarrow\left[{}\begin{matrix}x+4=0\\x-4=4\end{matrix}\right.\Leftrightarrow\left[{}\begin{matrix}x=-4\\x=8\end{matrix}\right.\)

19 tháng 5 2021

1.needn't

2.impressed

3.the

4.send

5.the

6.who

ko biết đúng ko nữa 

19 tháng 5 2021

Part 1

1 needn't

2 impressed

3 with

4 send

5 the

6 who

Part 2

1f 2d 3c 4b 5a 6g

Part 3

1 was cooking

2 surfing

3 went

4 was going to visit

5 try

6 widened

7 cultural

8 conveniently

Part 4

1 serious -> seriously

2 well-preserved -> be well-preserved

Part 5

1 my english were good

2 going to the english-

3 area has been spoiled 

4 which I read 

Part 6 

1 without

2 be damaged

3 healthy

4 destruction

Part 7

2F 3F 4F

25 tháng 2 2021

x*(y-2)=3

mà 3=1*3=-1*-3

ta có bảng sau lập bảng gải từng th

19 tháng 5 2021

Part 1

1 into

2 which

3 happily

4 aspect

5 if

6 compulsory

Part 2

1c 2f 3b 4g 5a 6e

Part 3

1 opened

2 to be finished

3 repairing

4 driving

5 harmful

6 modernize

7 environmentalists

8 effectively

Part 4

1 disappointing -> disappointed

2 come -> came

Part 5

1 succeed although he tried 

2 my father could speak

3 seen such an interesting 

4 being made to protect

Part 6

1 forest

2 climate

3 in

4 fortunatelt

Part 7

1T 2F 3F 4F