Jack used to work in a garage for a full 10 years, so he fixed the broken engine ______ ease.

       A. in       B. with    C. on      D. beyond

This new computer is obviously superior ______ the old one because it has many new functions.

       A. with                 B. on                           C. at                            D. to

We regret to hear nearly half of the people in that area still live ______ the poverty line.

A. under               B. over                      C. below              D. above

The effective communication ability for a writer is to get the knowledge out of his head and ____ readers’ heads.

A. out of                      B. into                         C. towards                    D. for

The airplane leaves at 7:00 p.m. So I have to be at the airport       5:40 p. m. at the latest.

     A. by      B. after   C. until   D. in

You mean the boy is only 12 years old? He seems much taller ______ his age.

       A. for               B. on                           C. at                                   D. with

       It saves time in the kitchen to have things you use a lot _______ easy reach.

A. near                  B. upon                 C. within               D. around

They chatted ____ coffee about their experience as volunteers during the charity.

A. over                 B. on                    C. to                            D. with

The work is not very profitable ____ cash, but I am getting valuable experience from it.

A. in terms of           B. according to          C. in relation to         D. in view of

Many medical scientists are racing        time to find a cure for H1N1 as soon as possible.

       A．on     B．against      C．for    D．in