1.It is reported that a (n) _____ of accidents has occurred

1.It is reported that a (n) _____ of accidents has occurred at that crossroads.
A.series B.lot C.number D.amount
2.About the sixth century A.D.when few Europeans could read,the Chinese _____ paper.
A.invented B.had invented C.have invented D.had been invented
3.Anyone,rich or poor,old or young,sick or _____ can follow a favorite hobby.
A.well B.good C.fine D.happy
4.I have two friends but ____ of them likes to go fishing with me.
A.none B.neither C.both D.either
5.His unhappy childhood _____ his bad temper.
A.counts for B.accounts for C.makes for D.goes for
6.No one doubts _____ it is true.
A.whether B.if C.that D.what
7.His brother had become a teacher,_____ he wanted to be.
A.who B.what C.which D.that
8.“I don’t like to travel.” “Have you ever _____ in an airplane?”
A.flying B.flew C.flowed D.flown
9.The center of gravity of the human body ______ behind his joint.
A.located B.locating C.to locate D.is located
10.“Today is very cold,isn’t it?” “Yes,the river is _____ over.” A.freezed B.freeze C.frozen D.freezing
A.freezed B.freeze C.frozen D.freezing
11.“What happened in that new area?” “New houses ______ recently over there.”
A.are built B.build C.have built D.have been built
12.“When did you go to work?” “As soon as they came,we ______ to work.”
A.went B.were going C.had gone D.go
13.She is such an irritating woman,I don’t know how you can ______ her.
A.put up B.stand up to C.stand with D.put up with
14.To get my traveler’s check I had to ______ a special check to the bank for the total amount.
A.make for B.make out C.make off D.make up
15.Little boys are easily ______.
A.taken in B.taken away C.taken out D.taken over
16.The company is going to hand ______ the free samples tomorrow.
A.up B.out C.on D.down
17.It was purely ______ chance that the mistake was discovered.
A.in B.for C.by D.from
18.Be sure to _____ your work at the end of the exam.
A.catch sight of B.hang up C.set D.look over
19.If light is not completely reflected by the object,some light is said _____.
A.to be absorbed B.to absorb C.absorbing D.being absorbed
20.We now live in a world in which the population _____ rapidly.
A.has been increased B.is increased C.is increasing D.is being increased
21.Two hours later we landed at San Francisco,_____ passports were examined.
A.where B.when C.which D.while
22.I saw Dr.Smith _____ the operating room a moment ago.
A.enter B.entered C.to enter D.had entered

1`-10;A,B,A,B,A,A,C,D,D,D.
11-20;D,B,D,B,A,B,C,D,A,C.
21-22;A,A.