1.Mathematics is the subject______.
A.at he is deeply interested B.he is much interested in
C.he is deeply interested D.which he is very much interested
2.The reason______I can’t come is that I have to prepare for the coming exam.
A.for B.as C.because D.why
3.The dictionary______is now out of stock（无现货的，无库存的）.
A.he bought last week B.which he bought it last week
C.bought last week D.he bought last week before
4.She studied hard at school when she was young，______contributes to her success in her career.
A.that B.so that C.so D.which
5.The mouse______comes out at night to nibble at the cheese we leave as bait.
A.whom lives in the wall B.that lives in the wall
C.whom the wall lives in D.that live in the wall
6.I’ve got a bottle of beer，but I haven’t got anything ___I can open it with.
A.that B.what C.where D.which
7.All members______are admitted to the auditorium.
A.have got tickets B.that had got the tickets
C.that have got the tickets D.who had got the tickets
8.Such electronic tubes______in a radio set are also found in a TV set.
A.that we use B.as we use them
C.as we use D.that we use them
9.Writers can accurately describe objects______have never seen.
A.who B.if they C.they D.that
10.It wasn’t such a good present______he had promised me.
A.that B.while C.as D.what
11.Perhaps the day will come ______people will be able to breathe clean air in city.
A.when B.while C.as D.since
12.The only thing______I knew is______my brother said to me the other day.
A.which；what B.that；what C.what；that D.that；which
13.He was the man______I supposed was capable of doing such a thing.
A.to whom B.of whom C.who D.whom
14.She is the girl______.
A.whose name is Susan B.name of whom is Susan