. There are so many kinds of tape-recorders on sale that I can’t make up my mind ____to buy.

A. what                 B. which               C. how                  D. Where

. ---I must apologize for  ___________     ahead of time.    ---That’s all right.

A. letting you not know                B. not letting you know

C. letting you know not                D. letting not you know

．Mr. Smith warned her daughter ______ after drinking．

    A。never to drive    B . to never drive     C．never driving     D . never drive

.  None of them ______ my friends.

A. is       B. are      C. was       D. has been

. Mary is one of the girls who ______ always on time.

A. is    B. am    C. are    D. Was

. The manager or his assistant ______ planning to go.

A. were    B. are    C. was    D. Be

.I’ll_____his reputation among the business in the community, and then make a decision whether or not to approve a loan.

A.take care of            B.take into account       C.take notice of     D.put up with

. “Good morning. Can I help you?” “I’d like to have this package _______.”

A. be weighed      B. to be weighed       C. to weigh      D. weighed

. He was reading his book, completely _______ to the world.

A. lost        B. Losing          C. to lose        D. to have lost

 All the preparations for the project ______, and we’re ready to start.

A.completed     B. have been completed  C. had been completed    D. been completed