Have all the students known that our class will visit the factory this afternoon—Yes. Every student______ about it.

Whose handbag is this—It _________be Li Ping’s. I saw her take hers away just now.

The secretary________letters all the afternoon and there are still two letters to finish.[ ]

Don’t ______ until the bus stops. Or it’s too dangerous.

Would you like some ______?—Yes, a little please.