1. The children went there to watch the iron tower _D_.
A to erect B be erected C erecting D being erected
watch 看电视用，看比赛用; see 看电影用;
感官动词watch， see， hear; 感官动词 + 名词(代词)+ do
be erected 强调的是动作的结果; being erected 强调的是动作的过程。
2. The engine _D_ smoke and steam.
A gives up B gives in C gives away D gives off
give up 放弃; give in 屈服，让步; give off 释放，放出(烟和气体);
give away 泄露，走漏风声;婚礼中新郎的父亲把新娘的手交给新郎的过程;赠送礼品。
3. The manager promised to keep me _C_ of how our business was going on.
A to be informed B on informing C informed D informing
keep sb. + 分词; inform v. 通知，告知; inform sb. of sth. 通知某人某件事情
keep me informed 使我被告知。
4. The goals _B_ he had fought all his life no longer seemed important to him.
A after which B for which C with which D at which
fight with sb. (注意要看整个句子); fight with + 工具 用该工具来打仗。 fight for 为…而战。
I fight with him. 我和他打起来了。 I fight with him against her. 我和他并肩对付她。
5. They _C_ in spite of the extremely difficult conditions.
A carried out B carried off C carried on D carried forward
in spite of ; carry on ，。
6. I should like to rent a house， modern， comfortable and _B_ in a quiet neighborhood.
A all in all B above all C after all D over all
all in all 总而言之;above all ，是;after all 毕竟，终究;overall 的，总体的
in a word 总之，in short 简而言之，in conclusion 最后，总之，to sum up总之，总而言之。
7. _B_ we have finished the course， we shall start doing more revision work.
A For now B Now that C Ever since D By now
now that 既然，(于since); ever since 自从…。
now that 既然，; in that ; except that 除…之外。
8. What you have done is _D_ the doctor’s orders.
A attached to B responsible to C resistant to D contrary to
be attached to 连接，附属; This school is attached to Beida. 这所学校附属于北大。
responsible to 对…负有责任; resistant adj. 反抗的，抵抗的; water resistant 防水的。
be contrary to 与。。相反(相违背)。
9. John regretted _A_ to the meeting last week.
A not going B not to go C not having been going D not to be going
regret doing 后悔做过某事; regret to do sth. 遗憾的做某事(应用语境非常有限)。
10. We regret to inform you that the materials you ordered are _B_.
A out of work B out of stock C out of reach D out of practice
out of work 失业; out of reach 够不着 within reach 够得着; out of practice 练习。