It was reported that neither the passengers nor the driver ______in the crash.
A.were injured
B.are injured
C.was injured
D.have been injured

The woman wished she ______such drastic action when the stock market seemed volatile.
A.had not taken
B.did not take
C.not take
D.was not taken

_____for the fact that he was working abroad, he would willingly have helped with the project.
A.If it had been
B.If it hadn't been
C.Had it been
D.Hadn't it been

Who/what counts the number of hours per week that students spend learning?

A.Teacher
B.Parents
C.Virtual reality
D.computers

What can't the software do?
A.Find out the best activities for the students
B.Design materials for the students
C.Identify weaknesses of the students
D.Monitor the time the students learn

______(46)
A.consisting of
B.consisting
C.consist of
D.in concluding of

_______(48)
A.weren't
B.can't
C.are not
D.couldn't

______(49)
A.who is
B.is
C.which has
D.which is

A.teacher
B.children
C.charity
D.orchestra

I have lost my umbrella. I__________it on the bus.

A.should have left
B.can leave
C.could leave
D.must have left