1 It is difficult to assess the importance of the decision.
A evaluate
B comment
C discuss
D report
2 You must try to wipe out the memory of these horrible events.
A strange
B terrible
C unusual
D unfair
3 He spoke in such a pleasant manner that I felt at ease with him at once.
A confident
B relaxing
C formal
D comfortable
4 He worked so hard that eventually he fell ill.
A then
B surely
C finally
D recently
5 He thought it better to begin working immediately.
A at once
B recently
C early
D rapidly
6 As the headmaster made a long speech, the ceremony was prolonged by ten minutes.
A quickened
B enlarged
C enriched
D lengthened
7 The animals in Australia are vastly different from those in Europe
A chiefly
B greatly
C mainly
D totally
8 Poor people can't always live in decent conditions
A popular
B famous
C favorite
D acceptable
9 Many people have the illusion that wealth is the chief source of happiness.
A firm belief
B outlook
C false idea
D vision
10 When she was invited to dinner, she readily accepted
A suddenly
B firmly
C really
D willingly
11 The manager gave us the identical cottage each summer.
A temporary
B similar
C same
D attractive
12 Mary has derived a good deal of benefit from her job.
A obtained
B accepted
C bribed
D produced
13 He is charming; nevertheless, I don't quite trust him.
A however
B therefore
C despite
D afterwards
14 Her behaviour is extremely childish.
A simple
B immature
C beautiful
D pretty
15 Even in a modernized country, manual work is still needed.
A hard
B mental
C simple
D physical
参考答案：
1. A 2. B 3. D 4. C 5. A
6. D 7. B 8. D 9. C 10. D
11. C 12. A 13. A 14. B 15. D