Ⅰ.单句语法填空
1．With so much homework ________(do)，Mary won’t have time to play with her friends.
答案： to do
2．Jack wasn’t saying anything，but the teacher smiled at him as if he ________ (do) something very clever.
答案： had done
3．Mr Pan has been loved by the public for his ________(humour) performance for years.
答案： humourous
4．He found it________(astonish) that his money in the drawer was gone.
答案： astonishing
5．________(fortunate)，I didn’t have my credit card with me or I’d certainly have bought it.
答案： Unfortunately
