题目内容：

(每题都需要详解,)
1.There are many insects in the world than never do_____ harm to human beings.
A.less B a little C.the least D.the little
2.When you go by train,make sure you take an express,_____stops only at a big station.
A.one that B.what C.the one D.that
3.Seven presidents have been seen ______during the past 20 years.
A.to come and go B.coming and going C.come and go D.to come ang to go
4.When he was fifty,he developed _________love for poems.
A a B,./ C.the D.an
5.They still remembered the happy years________ in the country.
A.when they had together B.which spent together
C .spent together D.in which they spent

优质解答

D being built 做图书馆的定语 表示 正在建的图书馆
C think of doing sth 一个完整的句子中只能有一个谓语故不能选AD
C try doing sth 试着做某事
A 动词ing做状语 通过...的判断
C be worth doing 值得做某事