1 bought

2 didn't eat 

( Giải thích: Cả 2 câu trên đều có dấu hiệu nhận biết thì qk đơn )

3 did - go 

( Giải thích: Vì có thời gian cụ thể )

4 Will - see

A

C

C

1.     He (finish) ……had finished………the work before we (get) …got……back last night.

2.     If he (work ) ……works……hard today, he (can/have) …can he have………a holiday tomorrow?

3.     A lot of people (kill) ……had been killed……before the rescue workers (arrive) …arrived………

4.     The Ring of Fire (believe) …is beleived………(be) is…the most dangerous place with usual volcanic eruptions and earthquakes.

5.     The wildlife (be) ……will be………in danger if we (not care) …don't care…for them.

6.     Unless I have a quiet room I (not be able/do) …won't be able to do……any work.

7.     We (take) ……will take……an umbrella because it (look) …looks……as if it was going to rain.

8.     What noisy neighbor you have got! If my neighbours (be) …are……as bad as yours, I (go) …will go…crazy.

9.     When we (get) …goy……there we could see that they (not expect) …didn't expect…us at all.

10.  All the trapped people in the collapsed building (cry) …were crying…for help when we came.

were --> was

1.Why don’t we listen to music tonight?

     ==> How about  listening to music tonight?……

2. Mr. Hung drives very carefully.

      ==>Mr. Hung is ……a careful driver……

3. How much does a bottle of cooking oil cost?

     ==>What …does a bottle of cooking oil cost……….?

4. Phuong has a brother ,Nam.

       ==> Phuong……'s brother is Nam

5. My father usually drives to work.

      ==>My father usually goes …to work by car

6. This house is small.                               

      ==> It is.......a small house

7. The bookstore is to the right of the toystore.  

      ==> The toystore..is to the left of the bookstore

8. There are five people in her family.

     ==>  Her family .......has five people.

9. Hoang is 1.75 meter tall.Vinh is 1.65 tall.

     ==>  Vinh is....shorter than Hoang

10. Hoa’s school bag is new.

   ==>  Hoa has……a new school bag.