What are the police doing there? —They are _______ the building. A robber ran into it just now.

Good evening. I _______ to see Miss Lisa.—Oh, good evening. I’m sorry, but she is not in.

We must pay attention to _______ the teacher carefully in class.

Because of the bad weather, we have to _________ the meeting till next week.

The shop is especial busy ____10: 00 a. m.____3 :00 p. m. when it is crowded with tourists.[ ]