下面共有15个句子，每个句子中均有1个词或短语划有底横线，请从每个句子后面所给的4个选项中选择1个与划线部分意义最相近的词或短语。答案一律涂在答题卡相应的位置上。
1 John is collaborating with Mary in writing an article
A cooperating
B competing
C combining
D arguing
2 The river widens considerably as it begins to turn west
A twists
B stretches
C broadens
D bends
3 Henry cannot resist the lure of drugs.
A abuse
B flavor
C temptation
D consumption
4 These programmes are of immense value to old people.
A natural
B fatal
C tiny
D enormous
5 A great deal has been done to remedy the situation
A maintain
B improve
C assess
D protect
6 These are their motives for doing it
A reasons
B excuses
C answers
D plans
7 He is determined to consolidate his power
A strengthen
B control
C abandon
D exercise
8 Many scientists have been probing psychological problems
A solving
C settling
B exploring
D handling
9 Hearing problems may be alleviated by changes in diet and exercise habits
A removed
B cured
C worsened
D relieved
10 In Britain and many other countries appraisal is now a tool of management.
A evaluation
B efficiency
C production
D publicity
11 The food is insufficient for three people.
A instant
B infinite
C inexpensive
D inadequate
12 Thousands of people perished in the storm.
A died
B suffered
C floated
D scattered
13 But in the end he approved of our proposal
A undoubtedly
B certainly
C ultimately
D necessarily
14 For young children，getting dressed is a complicated business.
A strange
B complex
C personal
D funny
15 And the cars are tested for defects before leaving the factory
A functions
C motions
B faults
D parts