Teaching ______ enthusiasm and selflessness. As a result, to be a good teacher is not an easy job.

    A．calls for                  B．calls off                  C．calls on                   D．calls up

The question took the professor ______. He was at a loss for the answer for a while.

    A．by accident             B．by chance        C．by mistake              D．by surprise

Having grasped the developing opportunity, we Chinese people are ______ all the advantages we have, heading for good.

A．going all out for                             B．making the best of

C．sparing no effort to                        D．trying our best to

The monument was built ______ the soldiers who died for the country.

    A．in case of                B．in favour of             C．in honour of            D．in view of

Mr. Wu is a very ______ man, who always explains things over and over again until we understand.

    A．enthusiastic             B．energetic                 C．intelligent                D．patient

If you keep on working like this, you will ______ sooner or later.

    A．break down             B．burn down                     C．fall down                D．lie down

The rainstorm warning is issued. Very strong wind and heavy rain are ______ tomorrow.

   A．expected                 B．hoped                     C．waited                    D．wished

Though she’d lost her job, she saved face by saying she’d left it _______.

    A．carelessly                B．fairly                      C．violently                  D．willingly

He went back home without having ______ any success.

    A．accomplished          B．achieved                 C．completed               D．finished

This magazine is said to have a large _______, but I never read it before.

    A．circulation                  B．contribution             C．demonstration         D．explanation