There were _______ shops in the city in1982 than in 1990.

Under no circumstances in the last three months______ for leave because of personal affairs．

Will you take part in Mary’s birthday party— I’v no idea. But if Lucy doesn’t go there, _________.

My father _________ Beijing many times. He _________there again last week.

This summer North China was attacked by such a terrible heat few people has ever experienced before.