11.---- You must phone us every week.

　　----Yes , I____.

　　A.must

　　B.have to

　　C.will

　　D.should

　　12.----What are you going to do this afternoon?

　　----I'll probably go for a walk later on ____it stays fine.

　　A.as far as

　　B. so long as

　　C. even if

　　D. as if

　　13.I had to ____because someone else wanted to use the phone.

　　A.give up

　　B. put up

　　C. hang up

　　D. ring up

　　14.A terrible thought suddenly____ me----had anyone broken into the house?

　　A.struck

　　B.beat

　　C.knocked

　　D. attacked

　　15.Maria has to baby-sit. That's ____she can't come out with us.

　　A.why

　　B.how

　　C. when

　　D. what

　　16.People often want to know what my job is. Often I____ that question.

　　A.ask

　　B.am asking

　　C. get asked

　　D. get asking

　　17.If the company wants to fire me, they have to give me three months' ____.

　　A.notice

　　B.advice

　　C. information

　　D. message

　　18.You can buy these maps at ____railway station. They all have them.

　　A.all

　　B.any

　　C.every

　　D.each

　　19.The Yellow River,____ to be “the mother river”, runs across China like a huge dragon.

　　A.saying

　　B. to say

　　C. said

　　D. being said

　　20.The newspapers back home don't have as many pages as they ____here.

　　A.are

　　B.do

　　C.have

　　D.are having