7．It rained                  last night and the river rose two feet．

6．A bus               is responsible for the safety of his passengers．

5．                （地理）and history are two subjects I like best．

Ⅱ．用所给词的适当形式填空。

heavy     important    freeze  drive  wind

4．I think the film 2046 is b               ．Few people like it．

3．In modern buildings，we take a l                 to go up and come down．

2．In                    （we call it autumn in British English），the tree leaves turn brown．

1．This is a                  （not useful）book；I don't want to read it again．