Thanks to the joint efforts made by the leaders of China and the US over recent years, mutually _______ Sino-US relations have made remarkable progress.
| A．adaptable | B．beneficial |
| C．relevant | D．convenient |
.No sooner____to shine____it clouded over again.
| A．the sun had started;than | B．had the sun started;than |
| C．the sun started;when | D．did the sun started;when |
Only when it is hungry____attack a human being.
| A．a lion will | B．did a lion | C．will a lion | D．do a lion |
He is a good student,and works very hard;____.
| A．so it is with her | B．so does she | C．so is she | D．neither does she |
.Seldom____any mistakes during my past few years of working there.
| A．would I make | B．have I made | C．I did make | D．shall I make |
Little____about what others think.
| A．he cares | B．he doesn’t care | C．does he care | D．doesn’t he care |