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23. He spoke very slowly, but he still didn’t get his meaning _______.

. “May I borrow your paper？” “ ______.”

. “Could you do me a favour and take the box up to the six floor？” “_______.”

After the quarrel, I tried all my best to fix the misunderstanding between us, but all my efforts seemed          .

18．__________being late for the important meeting, the secretary got fired form her job.

..Millions of people gave freely_____the starving people’s appeal.

.______the silence for the pauses,we could hear each other’s breathing and could almost hear our own heartbeats.

.I hurried to the accident spot only to find two dogs happily enjoyed what was left ____the cake and meat.

一、介詞類
._____giving a general information to computers, the course also provides practical experience.

. — Do you think there is anything ____ interest in the exhibition?
— Yes, I think some of the pictures are ____.