Children must _______ road safety before they are allowed to ride a bike on the road.
A.instruct in | B.instruct | C.be instructed in | D.be instructed |
The old professor, to_______ the important invention _______, decided not to keep it for himself, but to make it known to all over the world.
A.whom; was belonged | B.which; belonged |
C.whom; belonged | D.which; was belonged |
It remains ______ whether Liu Xiang will take part in the next Olympics.
A.to see | B.to be seen | C.seeing | D.to have seen |
I don’t think the problem you referred to is worth______.
A.thinking | B.being thought over |
C.thinking over | D.considering of |
---I’m taking part in the 200-meter race tomorrow. ---_________.
A.Nothing at all | B.congratulations | C.No problem | D.Good luck |
—Why didn’t you tell him about the exciting news?
—He rushed out of the room ______ I could say a word.
A.before | B.after | C.when | D.until |