1. For some time now, world leaders _______ out the necessity for agreement on arms reduction.
A. had been pointing
B. have been pointing
C. were pointing
D. pointed

2. Mr.White works with a chemical import&export company, but he _______ for the industrial fair, since he is on leave.
A. has worked
B. works
C. has been working
D. is working

3. That was not the first time he ________ us. I think it's high time we ________ strong actions against him.
A. betrayed; take
B. had betrayed; took
C. has betrayed; took
D. has betrayed; take

4. The policeman declared that the blow on the victim's head ________ from behind.
A. should have been made
B. must have been made
C. would have been made
D. ought to have been made

5. ________ the financial means to remain independent, Thomas Edison was compelled to seek employment as a night telegraph operator.
A. He was deprived of
B. Deprived of
C. That he was deprived of
D. Although he was deprived of

1.[答案]B
[译文]一段时间以来，世界首脑都一直指出有必要就裁军问题达成共识。
[答案解析]从该句中的时间状语for some time now可以看出，主句的动作从过去某一时间开始一直持续到现在，而且动作可能还会延续，故应该用现在完成进行时。

2. [答案]D
[译文]Mr.White在化工进出口公司工作，但他休假期间为工业博览会工作。
[答案解析]现在进行时表示现阶段正在进行的动作，也可以表示一种临时或目前的状况，因此根据语境，应该用现在完成时。

3.[答案]C
[译文]那不是第一次被判我们。我认为咱们该对他采取强有力的行动了。
[答案解析]从该题的第一句语义可知“背叛”发生不止一次，尽管行为发生在过去，但结果是现在仍然处于“背叛”的情形，因此用现在完成时，表示某事虽由过去开始，但与现在还有关系。根据虚拟语气规则，该题第二句的it's high time要求后面接得从句谓语动词要用一般过去时。

4.[答案]B
[译文]警察称，受害者头部受到的一击肯定来自身后。
[答案解析]从该剧的语义看，句中需要有对过去发生的事情的推测且语气肯定的表达，因此用must have been made。

5.[答案]B
[译文]由于被剥夺了保持独立的经济来源，Thomas Edison 不得不去当夜间电报员。
[答案解析]该句后半句是一句完整的句子，那么逗号前的句子应该是一个分词独立结构作状语，deprive of 与其逻辑主语Thomas Edison 之间为被动关系，故用deprived of。