17.I have worked with Tom for some time and have found that he is _____ than John.
A.more efficiently a worker B.a more efficient worker
C.more an efficient worker D.a worker more efficiently
16.He hurried to the booking office only _________ that all the tickets had been sold out.
A.to tell B.to be told C.telling D.told
15.Mr Jone must have seen the film last night, _________?
A.didn’t he B.mustn’t he C.didn’t John D.hasn’t he
14.She __ to bed when the earthquake suddenly started. That was why she was just in her bed clothes.
A.was about to go B.went C.did go D.would go
13.The professor could hardly find enough reasons ____ his arguments in favor of the new theory.
A.to be based on B.to base on
C.which to base on D.on which to base
12.-Take this medicine three times a day, Tom.
-Do I have to take it? It __________ so terrible.
A.is tasting B.is tasted C.tastes D.has tasted
11.In the botanic garden we can find a(an) ___ of plants that range from tall trees to small flowers.
A.species B.group C.amount D.variety
10.-All of us had a good time in the picnic last Sunday. Pity you weren’t there.
-I really _______ come but I was looking after my mother in hospital.
A.must B.ought to C.need have D.should have
9._____ villagers on that island have been living in _____ peace for years with one another.
A.The; / B./; the C.The; a D.The; the
8.-Do you mind if Martin join in your work?
-Yes, I do. I ‘ll be glad to work with _________ Martin.
A.anybody but B.somebody but C.nobody but D.all besides