用括号内所给动词的适当形式填空，必要时可加助动词或情态动词。

1. Ming went to Shanghai last year and _________(fall) in love with it.

2. All the people in the world hope there _________(not be) any pollution in the future.

3. Tom _________(watch) TV when his father got home yesterday.

4. If you _________(not start) early, you will be late.

 5. Marcia said everyone shouldn't _________(shout)in the dining room.

6. Scott is supposed _________(arrive) at the airport at eight o'clock.