I often have conversations with John over telephone, while keep in touch with Tom by__________ letter.
| A．不填;;the | B．不填;a | C．the;不填 | D．the; a |
– Do you think we should accept that offer?
-- Yes, we should, for we ___such bad luck up till now, and time __ out.
| A．have had; is running | B．had; is running |
| C．have; has been run | D．have had; has been run |
It was announced that only when the fire was under control ___ to return to their homes.
| A．the residents would be permitted |
| B．had the residents been permitted |
| C．would be residents be permitted |
| D．the residents had been permitted |
--- I am so sorry to have come late for the meeting.
--- It is not your fault. With __ rush-hour traffic and __ heavy rain, it is no wonder you were late.
| A．a; a | B．the; the | C．/; / | D．/; a |
If a person has not had enough sleep, his actions will give himduring the day.
| A． | away | B． | up | C． | in | D． | back |
What a pity. Considering his ability and experience, hebetter.
| A． | need have done | B． | must have done |
| C． | can have done | D． | might have done |