I would like      e-mails to friends．

Simon doesn’t know what  ________ today.

The students were made _____ in the exercise books.

At least 300 million people are using QQ _____by Ma Huateng to chat on line.

If you still have a headache, you’d better ________ a doctor

—I am not good at playing football, would you mind ________ me?
—not at all.

Would you like _________ to music?
A. listen                B. to listen             C. listening

Mrs Wei always encourages us _________ English in class.
A. speak              B. to speak            C. speaking

_____ the environment is important for human beings.

I can’t stand _____ for you so long.