Professor Smith ,along with his assistants ,      on the project day and night to meet the deadline .

       A．work                  B．working              C．is working           D．a(chǎn)re working

More than a dozen students in that school        abroad to study medicine last year.

       A．sent                    B．were sent            C．had sent              D．had been sent

There was a loud scream from the backstage immediately after the concert ended,      ?

       A．wasn’t there        B．was there            C．didn’t it              D．did it

At a rough estimate .Nigeria is         Great Britain.

       A．three times the size as                          B．the size three times of

       C．three times as the size of                      D．three times the size of

There      be any difficulty about passing the road test since you have practiced a lot in the driving school.

       A．mustn’t              B．shan’t                 C．shouldn’t             D．needn’t

No progress was made in the trade talk as neither side would accept the conditions of       .

       A．others                 B．the other              C．either                  D．a(chǎn)nother

John became a football coach in Sealion Middle School        the beginning of March.

       A．on                      B．for                      C．with                    D．a(chǎn)t

The repairs cost a lot ,but it’s money well       .

       A．to spend              B．spent                   C．being spent         D．spending