用动词适当形式完成以下句子1.They ( ) (ask) us to clean the classroom yest

用动词适当形式完成以下句子
1.They ( ) (ask) us to clean the classroom yesterday.
2.Would you like ( ) (buy) a bottle of orange for me?
3.When I ( ) (walk) in the street,I met her.
4.She said she ( ) (visit） the Great Wall the next month.
5.There ( ) (be) a football game next Monday.