21.Who taught you ____ __ a bus.

21.Who taught you ____ __ a bus.
A.driving B.to drive C.riding D.to ride
22.It’s necessary ________the book at once.
A.for him to return B.to him return
C.at him to return D.to him to return
23.We find it difficult _______ the work in two hours.
A.finishing B.to finish C.finish D.finished
24.Would you please _______ the text
A.read B.to read C.reading D.is reading
25.After singing a song ,Mary ______ us a story.
A.went on telling B.went on to tell
C.went telling D.went to tell
26.It’s very kind _______ to see me.
A.that you come B.that you will come
C.for you to come D.of you to come
27.--- Mum,the Chinese medicine tastes so ______ that I don’t want to take it.
--- But,dear,it is good for you.
A.good B.terribly C.terrible D.well
28.--- I think we should keep _______ in the reading-room.
--- You are right.
A.quiet B.quietly C.quite D.quickly
29.--- How was the old woman this morning?
--- She looked _______.
A.be happy B.happily C.happy D.to be happily
30.Travelling by train is _______ cheaper and _______ enjoyable than by air.
A.more; much more B.quite; much too
C.very; very much D.much; far more
31.This kind of skirt looks _______ and sells _______.
A.nice; well B.nice; good
C.well; well D.good; nice
32.--- Look at the picture.How’s the weather?
--- It’s _______.
A.sunny B.rain C.wind D.cloud
33.In the exam,the _______ you are,the ______ mistakes you’ll make.
A.carefully,little
B.more carefully,fewest
C.more careful,fewer
D.more careful,less
34.--- That man is driving _______.We must stop him at once.
--- OK.Let’s call the police.
A.careful B.carefully
C.dangerous D.dangerously
35.--- How do you write with your new pen?
--- _______.
A.Quickly and neatly B.Quick and neat
C.Quick and neatly D.Quickly and neat
36.It is _______ to work out this problem.You needn’t go to ask the teacher.
A.enough easy B.easily enough
C.easy enough D.very easily
37.They all looked _______ at the teacher and felt quite _______.
A.sad; sad B.sadly; sadly
C.sad; sadly D.sadly; sad
38.--- It’s _______ nice of you to help me.
--- That’s all right.
A.true B.truly C.real D.really
39.Cathy did quite _______ in the English competition,but Jenny did even _______.
A.better; well B.well; well
C.well; better D.better; better
40.The plane got back to the airport and landed _______.
A.safe B.lively C.safety D.safely

21.A teach sb.doing sth.
22.A It's necessary for···对某人来说什么什么是必须的
23.B 动词不定式
24.C please doing sth.
25.A go on doing sth.继续做某事
26.D It's kind of sb.在某事上某人很好,这句话翻译成你能来看我,真是太好了.
27.B taste是动词,后面用副词来修饰terribly
28.A keep quite保持安静,这是固定词组.
29.C look是系动词（也叫感官动词）,后面要接形容词,只有happy符合题意.
30.A more可以放在形容词比较级前,much不可以单独放在比较级前,要用much more组合来放在比较级前.
31.A look是系动词后面接形容词,sell是动词后面接副词.
32.A 询问天气怎么样,后面要接形容词.sunny是晴朗的,符合题意.
33.C the +形容词比较级,the+形容词比较级,用来表示越来越怎样
34.D drive是动词,后接副词.
35.A write是动词,后接副词.
36.C enough要放在形容词后面不能放前面.
37.A look和fell都是系动词,后面接形容.
38.D
39.C did是动词,后接副词well,第二个空根据题意要用well的比较级better.
40.D land是动词后接副词.