1、Politics ______ the art or science of government.
A.is B.are C.be D.being
2、My friend was very unhappy for not ______ to the concert.
A.to be invited B.have been invited
C.to have been invited D.inviting
3、The noise was caused by a dog ______ a cat through the garden.
A.chasing B.fighting C.running D.following
4、I must get up earlier tomorrow morning ______ late again.
A.not to be B.not being C.so as not to be D.for not being
5、Because of her peculiar characteristics, she has a lot of difficulty ______ friends with her classmates.
A.to make B.making C.of making D.for her to make
参考答案:
1、A 2、C 3、A 4、C 5、B