A、 had the plane landed
B、 did the plane land
C、 the plane had landed
D、 the plane landed
答案：A
解析：解析:表示否定意义的词hardly放在句首,句子倒装。hardly所在的句子中要用过去完成时态,与when引导的状语从句中的过去时配合。
A、 had the plane landed
B、 did the plane land
C、 the plane had landed
D、 the plane landed
答案：A
解析：解析:表示否定意义的词hardly放在句首,句子倒装。hardly所在的句子中要用过去完成时态,与when引导的状语从句中的过去时配合。
A. with
B. to
C. for
D. as
解析：解析:compare…to…是“把……比作……”的意思。
A. more bad than it was
B. the worse than before
C. worse than ever before
D. more bad than they were
A. for
B. about
C. with
D. by
解析：解析:be famous for表示“以……而著名”。
A. more better
B. as well as
C. much better than
D. as better as
解析：解析:much用在句中修饰比较级better。
A. is
B. is to be
C. are
D. are to be
解析：解析:表示时间、距离、重量、价值等的复数名词做主语时,如果当成整体看待,谓语动词用单数形式。
A. child
B. childrens'
C. children
D. children's
解析：解析:表示名词的所属格时用’s。学校图书馆进了新书,都是儿童书。
A. hobby
B. care
C. sport
D. habit
解析：解析:hobby指“业余爱好”。
A. it
B. that
C. this
D. its
解析：解析:it是形式宾语,句子真正的宾语是从句that l will help you。
A. does he
B. doesn't he
C. don't I
D. do I
解析：解析:对含有宾语从句的句子进行反义疑问时,如主语是第一人称I,we,则反义疑问句的动词应随宾语从句的动词形式。
A. on
B. at
C. to
D. by
解析：解析:on the spot表示“当场”。
