Câu 1.Cho 6,4 gam đất đèn chứa 80% CaC₂ vào nước dư. Thể tích khí thu được (ở đktc) là  

A. 0,896 lít.               B. 1,12 lít.                 C. 1,792 lít.              D. 2,24 lít.

1. my sister has bought some apples. she        (make) some apple pies

2. I didn't drink coffee because I           (drink) a cup of coffee already

3. I'm going on the trip Nha Trang on Saturday. this time tomorrow, I             (eat)many kinds of tasty seafood

1.she feels more happier than ever before

2. the children are very boring with the film and want to go home

giúp mình vs ạ sửa nỗi sai

a lot of sea will preserve if people stop using dynamite for fishing

sửa lỗi sai?

3. he spent two hours painting the windows yesterday

=>it took

4. how long have you worked as a secretary?

=> when did

5. "if I were you, I wouldn't take part in that parade", said my brother

=> my brother advised