33. We were about to climb up to the top of the mountain ________ it began to rain heavily.
| A．as | B．while | C．when | D．Since |
I’m afraid I am not fit for the job, for it is calling for much patience.
| A．which | B．thence | C．one | D．that |
We’ll never forget the Premier Chou Enlai.
| A．late | B．dead | C．past | D．deadly |
The boy was badly hurt in his head, however, still .
| A．living | B．alive | C．live | D．dying |
It is for a person in his position to make such a mistake.
| A．rare | B．scare | C．usual | D．rarely |
So far his spoken English is improved .
| A．much | B．better | C．well | D．greatly |