用所给单词的适当形式填空（答案要告诉我为什么这样做）
1.there are a lot of () (visit) in the zoo during the hoilday
2.yesterday i ()(meet) my good friend in the supermarket
3.my sister and i () () (watch) tv at 8:30 last right
4.the boy dreams of () (become）a football star
5.my mother () () (set) the table when liu xiang () (win) the 110m hurdles.
6.most () (child) are ()(scare) to be in hospital.
7.i () （） （surf)the internet at 8:00 yesterday evening.
8.() (farm) are much richer than they were ten years ago