He, a Nobelist, made great ______________ to researching in this area.
| A．encouragements | B．constitutions | C．breakthrough | D．contributions |
—“Dear Frank, when will our wedding be?”
—“Ah, when? God knows.” He said, and ____ away from her, walked rapidly away.
| A．turning | B．turned | C．turn | D．to turn |
It is a spectacular __________ as the fireworks are set off and light up the sky during the Spring Festival.
| A．look | B．view | C．scenery | D．sight |
Jane warns us that our group is going to be very tired and dirty by the afternoon and she is right. However, the evening makes it all ______.
| A．favorable | B．worthwhile | C．precious | D．essential |
Her son,to whom she was so_____,went abroad ten years ago.
| A．concerned | B．cared | C．devoted | D．loved |
Before use, your new mobile must fully____.
| A．get charged | B．become charged |
| C．remain charged | D．turn charged |