After class, I like playing computer games and chatting ______ my friends ______ the Internet. [ ]

We usually cover the Christmas trees ____ colour lights. [ ]

This is the city _____ I visited 10 years ago.[ ]

Who is ________ English teacher?— Well, it’s Mrs. Green. She teaches ________ English very well.

Have you finished your work yet?—No，not yet. I think it’ll take ________ minutes.