Mn ơi giúp mình với ạ
I.Use the correct tense of the verb
1.She had tested the machine carefully before she ..... it(buy)
2.Since he powered the town, things. (change)
3.She is crying, what....... to her? (happen)
4.Until we found him, he...out of this room. (not get)
5. We not sleep until our son returned home last night. (can)
6..By the time I take the exam, I ....... all the exercises. (complete)
II.Add a Deteminer if necessary
1. Will....government be able to overcome all.....their immense difficulties.
2. ....Daily Times has .....largest circulation of all the newspapers in Lagos.
3......longer he stays with..... company, ......higher his salary will be.
4. The problem is easy enough but.....few students could answer it.
5. His subscription for....local tennis club costs well over $20 .....year.
6. He is very lazy, as.......result, he failed at his exam in.....English.
7. Yesterday he had .....dinner in.....expensive restaurant.
8. .....life would be difficult without .....electricity.