The ground is wet. It ______ rained last night.
A. may have B. might have C. must D. must have

There's still no ______ about the reason why the Malaysian plane was mysteriously lost.
A. clarity B. clear C. clarify D. clearance

_______ you should do first is make a list of all the things you have to do.
A. What B. That C. As D. If

______ the noise and pollution in the city, the Browns move to the countryside.
A. Being tired of B. Be tired of C. Were tired of D. Tired of

Conservationists ______that experiments on animals be stopped.
A. recommended B. banned C. said D. complained

Nothing can ______the loss of the child.
A. come up with B. make up for
C. make up with D. do with

___________ broken into when we were away on holiday.
A. Thieves had our house B. We had our house
C. Our house had D. It was our house

You will need ______ understanding of the subject.
A. a whole B. a thorough C. a universal D. an exact

From an early age, Wolfgang had a/an _______ for music.
A. passion B. interest C. tendency D. involvement

The doctor had been _______ for 48 hours and was exhausted.
A. on call B. on turn C. on work D. on tour