1 . The typhoon（台风） left,        a lot of damage to this area .

A．caused

B．to have caused

C．having caused

D．to cause

2 . If you go on doing so, you’ll _______ yourself sooner or later.

A．damage

B．destroy

C．ruin

D．break

3 . Tom ____ have kept his word. I wonder why he changed his mind.

A．must

B．should

C．need          D would

4 . Every evening after dinner, _____ tired from work, I will spend some time reading.

A．unless

B．if

C．until

D．when

5 . Most of the roads were covered with thick snow, ____ made our journey more difficult.

A．one

B．it

C．which

D．that

6 . I like the book so much that I'll buy it, _______.

A．no matter how it may cost	B．how may it cost
C．how much may it cost	D．however much it may cost

7 . —Shall I turn on the TV, Mom?
—No. You should be quiet _____ wake up your sleeping brother.

A．so not as to

B．so as not to

C．so as to not

D．not so as to

8 . This area experienced______ heaviest rainfall in_______ month   of May.

A．a; a

B．a; the

C．the; the

D．the; a

9 . —Mom, dad is smoking again!
—Well, let him cut it _____________ gradually since old habits die hard.

A．off	B．down
C．up	D．out

10 . I stayed there for only two days but ______ felt like two weeks．

A．it

B．what

C．when

D．then