China stands ready to join hands with all other countries to _________ the serious problems resulting from the energy crisis and build an even better future for the generations to come.
| A．tend to | B．cut off | C．hold back | D．deal with |
Is some German friends visited last week ?
| A．this school where | B．this the school where |
| C．this the school | D．this school |
Winter is the time of the yearthe days are short and nights are long．
| A．on which | B．that | C．when | D．where |
--- What ______ when I phoned you?
--- I ______ my work, and I was about to go out．
| A．have you done; finished | B．were you doing; have finished |
| C．did you do; had just finished | D．were you doing; had just finished |
It was the first time ________ I ________ face to face with a thunder storm.
| A．when / had come | B．that / have come | C．when / came | D．that / had come |
We were having a meeting _________ suddenly someone knocked at the door.
| A．because | B．when | C．as | D．while |