Persons under the age of 20 ____ to take driving license when we were young but now they ____ to.
A.were going / are not going
B.were not allowed / are allowed
C.have not been allowed / have been allowed
D.are not allowed / were

The news that her lost cat ____ was a great happiness to her.
A.
B.was found
C.
D.did find

I find it easy to make friends on Facebook.
A.Making friends on Facebook is easy for everyone.
B.Making friends on Facebook is becoming easier and easier.
C.I think it is easy to keep in touch with friends on Facebook.
D.It is easy for me to make friends on Facebook.

As soon as he arrived home, it started to rain.
A.Arriving home, he said it would start to rain.
B.No sooner had he arrived home than it started to rain.
C.He arrived home sooner than he had expected.
D.It started to rain and then he arrived home.

Choose the best answer to complete the following sentences.Only half of the exercises ____ so far, but the rest ____ by Saturday.
A.have been done / will have been finished
B.are being done / will be finished
C.done / have been finished
D.were done / are going to be finished

Because of the general pardon most of the prisoners ____ by the end of this year.
A.are being released
B.
C.will have been released
D.are released

The students ____ to stand up while the national anthem ____ and the flag ____ .
A.teach / singing / raised
B.are taught / is being sung / is being raised
C.were taught / sang / raise
D.taught / sang / is being raised

The medicine ____ at a high place where the children can't reach.
A.must be kept
B.must keep
C.must not keep
D.must be keeping

"The government has to take precautions against the hunters to protect the elephants because they are becoming extinct." Precautions ____ against the hunters to protect the elephants because they are becoming extinct.
A.have to be taken
B.are to be taken
C.has to be taken
D.were to be taken

Nothing ____ because it was very foggy and raining heavily.
A.could be seen
B.wasn't seen
C.is seen
D.didn't see