---What do you think _____ an important part in their daily lives?
---Music.
A.plays B.takes C.makes D.act
He seems to be doing nothing, but _____ he is just waiting for his chance.
A.actually B.gradually
C.frequently D.certainly
The boss requested that he _____ there to work.
A.was sent B.be sent
C.should send D.would be sent
You must ______ your papers before you hand them in.
A.go down B.go across
C.go out D.go through
Did you have any difficulty _____ his house?
A.on finding B.to finding
C.for finding D.in finding
He failed in the exam not only his laziness but also he didn’t listen to the teacher.
A.because; for B.because of; because
C.as; for D.for; since