On receiving a phone call from his wife __________ she had a fall, Mr. Gordon immediately rushed home from office.
| A．says |
| B．said |
| C．saying |
| D．to say |
When he was a boy, he used to go there and watched _______.
| A．repairing bicycles | ||
| B．to repair bicycles | C．bicycles being repaired | D．bicycles to be repaired |
Robert is said______ abroad, but I do not know what country he studied in.
| A．to have studied | B．to study | C．to be studying | D．to have been studying |
Beijing was attacked by such a terrible sandstorm ______few citizens had ever experienced before.
| A．and it was | B．as | C．that | D．which |
The country life he was used to______greatly since the opening policy.
| A．changed | B．has changed | C．changing | D．having changed |
He______ on this paper for ten minutes but he______only about sixty words.
| A．will have worked, has written | B．worked, has written |
| C．has been working, has written | D．will be working, works |