问题

Excuse me, what’s this for—It’s a cleaner and ittopick up dirt.

A:uses
B:is used
C:is using 为现在进行时，
D:used

正确答案是：

同类题型

Does Lisa have enough time to sleep every night– ________. She always looks so sleepy in the mornings.

We are living in an age most of things are done on cell phones.

Lucy had few close friends. So she didn’t know ________ about the trouble.

We students must these school rules. They are good for us.

om! Could you spare me a minute I want to havea word with you—Sure, Jean ____