液压油箱的压力正常来源于

You have been walking a long way, so      （） is a good rest.

The difficulty we now meet with is   （）    we can persuade him to tell the truth.

——Have you finished   （）         the book? ——Not yet. I’ll try
 it to you before Friday.

surprised me most was  （）      he was too late for the important meeting, for he was chairman of it.

That warmhearted woman often helps （）      is in trouble.

（） their real economic situations, they got some relief fund
from the government.

You should complete in time    （）    the teacher has told you to.

No matter how frequently  （）     the works of Beethoven always attract a large number of people.

the flight to New York will be delayed is   （）     I＇m especially worried about.

Could you tell me if it  （）    tomorrow?