It is known that ________ medical examination helps people to find out health problems as early as possible.
| A．normal | B．general | C．regular | D．common |
They held a ceremony ________ those killed in the battle.
| A．in honor of | B．instead of | C．in favor of | D．by means of |
The play begins at 6: 40 pm. So we have to be at the theatre ________ 6:30 pm at the latest.
| A．after | B．around | C．until | D．by |
I asked him whether he had done all the work himself ________ whether he had had any assistance.
| A．and | B．but | C．nor | D．or |
I was on the point of going to bed ________ Mr. Zhang rang.
| A．as | B．when | C．while | D．and |
English is understood all over the world ________ Turkey is spoken by only a few people outside Turkey itself.
| A．while | B．when | C．if | D．as |