did you go on vacation? —I went to summer camp.

He often __________emails to his parents on weekends.

Before he went abroad, he spent as much time as he ____ English.

I’d like you to tell me something about Shen Nongjia.—I’m sorry, but neither Jack nor I there.

The newly built school canteen(餐厅) is big enough to hold two ________ students at lunch time.