—Excuse me. _______ I sit here?
—You’d better not. It’s the man’s seat.
Must
Need
Could
Should
Jack _______ school two years ago and he______ for two years. A. left, has gone B. left, has been away C. leaves, has been away
---Could I clean the bedroom for you? ---No, thanks. I _______ it myself.
-Have you read this book? -Yes.I _______ it two weeks ago.
Sixteen-years-olds shouldn’t ______ to go to an Internet bar.
—Hi,Jack! Where_________ you ______ these days? —I _________ Beijing for about 2 weeks.