reasonable, the proposal he    attracted much attention．

It seemed a pity they ate it after all the trouble they had _____in making it.

You have _____ me. I didn’t refer to anyone here when I mentioned that at the meeting. What I wanted to say was that such a mistake could have been avoided.

Some of the students have already learned enough English to ____ a conversation with a native English speaker.   

Once out of the earth’s gravity, the spaceman is ___ by the problem of weightlessness.