Thomas Alva Edison didn’t “invent” the light bulb, but rather he ______ a 50 –year –old idea, which is not well –known.

A. improved upon    B. take down       C. put up        D. break away

Many students is not sure what to_______ at the university;they can’t make up their   

mind about their future.

A. take up                        B. make up       C. pick up          D. build up

Most people in that area objected  ________a golf playground there.

A.to build      B.of building            C.to have built     D.to building

________ happens in the world makes us happy and sad too.

A. That         B. What               C. Which                    D. Whether

It was dark______ we arrived at the little town .

A. that     B. until     C. since     D. before

Professor Smith has written some novels, but he is _____ known for his plays.

A. the best         B. more         C. better         D. the most

Mary is no longer ___ she was five years ago.

   A. whom    B. that    C.what      D.when

I’d like to ___ my high school days, which were among the happinest in my life.

   A. look forward to   B. look out of   C. look for    D.look back upon

As middle school students, we _____ the police to keep order.　 A. are used to help 　 B. used to helping

　 C. used to help 　 D. used to be helped

 It’s only ten minutes ______ the meeting but he’s still not here yet.　 A. for 　 B. at      C. by 　 D. till