51.This is the second time he his books.

51.This is the second time he his books.
[A] forgets\x05[B] forgetting\x05[C] has forgotten\x05[D] forgotten
52.He can go to the cinema if he .
[A] will like\x05[B] likes\x05[C] is liking\x05[D] is to like
53.Because the rooms ,we have not moved in yet.
[A] are being painted\x05[B] were painted\x05
[C] have been painted\x05[D] having painted
54.We watched football.
[A] that John play\x05\x05[B] John play\x05
[C] John to play\x05\x05[D] John for playing
55.They arrived at 3 p.m.but the class long before that.
[A] started\x05\x05[B] was starting\x05
[C] had been starting\x05[D] had started\x05
56.To everyone’s surprise,the meeting ended,with nothing .
[A] settled\x05\x05[B] being settled\x05
[C] settling\x05\x05[D] to settle\x05
57.She is very reluctant to part this old table,as it originally belonged to her mother.
[A] with\x05[B] away\x05[C] from\x05[D] off
58.A safety analysis the target as a potential danger.Unfortunately,it was never done.
[A] would identify\x05[B] will identify
[C] would have identified\x05[D] will have identified
59.The country,the crises it had,remained strong.
[A] for all\x05[B] but for\x05[C] except for\x05[D] above all
60.If you are convicted of drunken driving,your license will be for thirty days.
[A] sustained\x05[B] suspended\x05[C] suspected\x05[D] survived
61.A Dream of the Red Mansion is said into dozens of language in the last decade.
[A] to have been translated\x05[B] to translate\x05
[C] to be translated\x05[D] to have translated
62.As luck would have it,my teacher happened to America when an earthquake occurred in his native place.
[A] visit\x05\x05[B] have visited\x05
[C] be visiting\x05\x05[D] have been visiting
63.The new bridge will be the way which the towns on the opposite banks of the river.
[A] communicates\x05[B] attaches
[C] connects\x05[D] combines
64.Don’t find with Jane constantly; she is new at the job and has never done it before.
[A] fault\x05[B] flaw
[C] shortcomings\x05[D] errors
65.As for the influence of computerization,have we seen the results more clearly than in the United States.
[A] anywhere\x05[B] nowhere\x05[C] somewhere\x05[D] everywhere

51.C it is the first/second/,time +定语从句用现在完成时.have done
52.B 条件状语从句用一般现在时表示将来时..
53.A be+being+done是现在进行时被动语态.后文中的现在完成时说明前面正在被做.
54.watch sb do sth watch是感观动词后面用不带to 的不定式.
55.D\x09用过去完成时表示在到达arrive之前就已经开始上课了.
56.A with nothing settled是介词with的复合结构做伴随状语,其中settled和nothing 之间是被动关系所以用过去分词做宾补.\x09
57.A part with是固定短语,离开,抛弃,舍弃.
58.C would have done 是虚拟用法,表示过去本可以做却没做.
59.B but for 若不是,表示虚拟,
60.B suspended暂停
61.A 主语+be+ 过去分词done +不定式to do的一种时态,这句中的主语和不定式动词是被动关系还表示现在的结果所以选这个.
62.C happen to be doing碰巧正在做
63.B attach ,on
64.A find fault with 找茬
65.B nowhere是否定副词放在句首句子用部分倒装.注：以上答案都正确,