---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
