BT
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TD
5
NV
2
30 tháng 6 2016
mk nghj là : How long is it ???
P/s : k pjt dx hay saj
16 tháng 3 2018
1, he must arrive on time
2,what do you do every morning
3,Nam and I are in grade 6
4, Listen! Lan is playing the piano in the music room
CHÚC BẠN HỌC TỐT. NHỚ KB VS MK
16 tháng 3 2018
1. must
2.do you do
3.are
4.is playing
hc tot nha co len ^^
P
25 tháng 3 2020
1. What subjacts do you have on Friday?
2. What are Phong and Nam doing at the moment?
3. How many floors at your new shool?
4. Who does Sam having lunch with?
5. What do you usually do after school?
6. How often does your brother go to the judo club?
7. When do we have Physics?
8. Where are they going?
29 tháng 7 2018
Long isn't being at school now.He is being at home.
Mk nghĩ z.Sai thôi nha!
16 tháng 6 2018
Bài 1: First task:
Let \(x\) be the number of sparrows on the first lamp post at first. (\(x\) is a positive integer).
\(\Rightarrow16-x\)is the number of sparrows on the second lamp post at first.
We have: \(x-2+3=16-x+2-3\Leftrightarrow2x=14\Leftrightarrow x=7\)
Hence there are 7 sparrows on the first lamp post at first, 9 sparrows on the second lamp post at first.
Bài 2: Second Task
We can find 2 students who were born on the same day.
There are 30 days in April and 31 students were born on that month. Apply the Dirichlet 's theorem, we can ensure that threre exists at least one day where 2 students were born.
Trước "club" mình dùng giới từ (in,on,at,...) gì?
Trả lời:
in
Chúc bạn học tốt!
in bạn nhé