— Did you regret ___________ to your mother in a rude manner this morning?
— Yes, I’ll apologize to her the moment she comes back.
| A．to speak | B．speaking |
| C．to speaking | D．spoken |
Beijing was attacked by such a terrible sandstorm __________few citizens has ever experienced before.
| A．where | B．as | C．when | D．which |
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 the residents be permitted |
| D．the residents had been permitted |
—Why didn’t you help him?
—I __________, but I didn’t have the money.
| A．I did have | B．I would have | C．will have | D．must have |
The new tax would force companies to __________energy-saving measures.
A. adapt B. adopt C. adjust D address
_________is no possibility __________Bob can win the first prize in the match.
| A．There；that | B．It；that | C．There；whether | D．It；whether |