Cau dieu kien - test (2)

Let’s knock on their door to see _____ home.

                                              

• A. if they’re   

• B. unless they’re

• C. whether they were    

• D. if they were

Unless we _____  more snow, we can’t go skiing.

                                              

•        A. have    

• B. will have 

•          C. had

•    D. have had        

You’ll fail the exam _____ you start revising.

                                                                    

•       A. when    

• B. until        

• C. if  

• D. unless

Unless you wash the car, you _____ not drive it at the weekend.

                                                                                   

• A. would   

•      B. could  

• C. have to  

•      D. may

If Peter _____ his car before the drive, he _____ the problem of out of petrol.

                                                      

                                     

• A. checked / will not get   

• B. had checked / would not have got

• C. checks / will not have got  

• D. would be checking / will not have got

He stepped on the mine, and it exploded.

• A.                 If he doesn’t step on the mine, it doesn’t explode.

• B.                 If he doesn’t step on the mine, it won’t explode.

• C.                 If he didn’t step on the mine, it wouldn’t explode.

• D.                 If he hadn’t stepped on the mine, it wouldn’t have exploded.

In my experiments, the liquid is cooled to 32_­­­ºF. It always freezes.

• A.                 If you cool the liquid to 32 degrees, it froze.

• B.                 If you cooled the liquid to 32 degrees, it would freeze.

• C.                 If you cool the liquid to 32 degrees, it will freeze.

• D.                 If you had cooled the liquid to 32 degrees, it would have frozen.

It may rain this afternoon. I hope it doesn’t because I don’t want the match to be cancelled.

           

• A. If it rains, the match is cancelled.   

•                          B. If it rains, the match will be cancelled.

• C. if it rained, the match would be cancelled.  

• D. If it had rained, the match would have been cancelled.

Unfortunately, I don’t know Philosophy, so I can’t answer your question.

• A.                 If I know Philosophy, I can answer your question.

• B.                 If I know Philosophy, I will be able to answer your question.

• C.                 If I knew Philosophy, I would be able to answer your question.

• D.                 If I had known Philosophy, I would have been able to answer your question.

If the bag had not been heavy, we would have taken it with us.

• A.                 The bag is heavy, so we cannot take it with us

• .

  B.                 The bag was heavy, so we could not take it with us.

• C.                 Because the bag was heavy so we could not take it with us.

• D.                 We took the bag with us although it was heavy.