—Mom, my classmates invited me ________ a field trip. May I go with   them?  —OK. 

 —Where ______ my shoes?—Under the chair.

---Would you like _________ the Great Wall with us? ---Yes, of course.

 --- Are you worried when your son often plays computer games? --- Yes. I think playing too many computer games ______ on teenagers.

There _______ an amazing fashion show at He’ping Shopping Mall next week.