单项选择题
Hurry up. The lecture begins at 2:00.（）
A.Don‘t worry. We‘ve got 20 minutes. B.Thank you. No hurry. C.Never mind. You go if you like. D.The lecture is useful.
单项选择题 I think the Internet is very helpful.（）
单项选择题 Are you feeling better today, Mrs. Silver?（）
单项选择题 Hey, Barbara. You look so pale. （）
