he help of the new teacher, ____ number of the student in my class who have made_____ great progress in English so far is far larger.

Either his wife or his friends __________ his birthday party.

Tom had to have his car repaired in a garage because it ______seriously.

How was your holiday —It couldn’t have been ．I just stayed in the hotel because it was raining most of the time．

The international situation is currently undergoing great changes ______ UNESCO plays an irreplaceable role in promoting international cooperation.