1. I am not working now. I am reading book.

2. The bus didn't stop. It passed us.

3. Can your sister speak Franch? Yes, look! She is practicing with her son.

4. Does your mother often go to the supermarket? No, she doesn't often go there.

5. What do you think of my new dress? It is beautiful

6. Davis speaks Spain but he doesn't understand much.

7. Don't ask him to lend you. He haven't got no money.

8. It's a pity that we don't understand much.

9. What do you do tomorrow? I will come to see my grandparents.

10. Tomorrow is my friend's birthday. I will buy some flowers for her.

xét các số:1978;19781978;...;1978...1978(2018 số 1978)

trong 2018 số đã cho sẽ có 2 số chia 2017 cùng số dư(theo nguyên lý Direchlet)

gọi 2 số đó là 1978..1978(n số 1978) và 1978..1978(m số 1978)

1978...1978-1978....1978=1978...197800....0(m-n số 0)

=>1978...1978.100...0(m-n số 0) chia hết cho 2017

=>1978..1978 chia hết cho 2017

=>1978...1978000....0 chia hết cho 2017

=>đpcm

please chứ ko phai pleas

bcsp

Nhôm hiđroxit ( Al ( OH ) 3 )  tan trong dung dịch nào sau đây

A.  NaNO 3

B. NaCl

C. NaOH

D.  NaAlO 2

nếu cây đủ lớn có thể dùng phương pháp chiết cành