Viết câu điều kiện loại 1 dựa theo tình huống :
1.keep silen or you will wake the baby up 
2.stop taking or you won't understand the lesson 
3.I don't know her number, so I don't sing her up
4.I don't know the answer, so I can't tell you
5.He doesn't free time, so he doesn't play tennis 
6.We can got into the house because someone has a key
7.you can't go home now because you don't finish your test 
8.you don't want to get bad mark, so you must to the exercises