He got well-prepared for the job interview, for he couldn't risk ______ the good opportunity.

A．to lose    B．losing    C．to be lost     D．being lost

 The doctor advised Vera strongly that she should take a holiday, but　　didn't help.

     A. it       B. she      C. which       D. he

Children above 12 are able to take part in skiing or other activities _______for them.

A. designed   B. designing   C. to design    D. having designed

In the dark forests _________, some large enough to hold several English towns.

A. stand many lakes          B. lie many lakes

C. many lakes lie            D. many lakes stand

___ is no good ___ without doing anything.

   A. This...talking    B. It...to speak   C. It…talking   D. That...to say

---I didn’t go to the party yesterday because my car broke down.

---You ______ mine. I wasn’t using it.

A.ought to borrow       B.would have borrowed

C.had better borrow     D.could have borrowed

 ---They are quiet, aren’t they?

 ---yes. They are accustomed ____at meals.

A. to talking     B. to not talking      C. to not talk    D. to talk

 _____, I got better and returned to work.

   A. Accidently    B. Normally     C. Eventually    D. Particularly

 It is already 10 o’clock. I wonder how it ______ that she was two hours later on such a short trip.

A. came over     B. came out    C. came about    D. came up

---Why does the lake smell terrible?

---Because large quantities of water ______.

A.have polluted　　　 B. is being polluted

C. has been polluted　 D. have been polluted