This pair of shoes ____ belong to Jack. He likes this kind very much.—It ____ be his. It’s too large for him.

Tony, ____you _____ smoking? —Yes. Drinking tea is my favorite now.

He arrived ___ Shanghai ___ 9: 30 ___ March 5. [ ]

Through so much trouble，he learned ________ everyone needed friendship and ________self confidence is important.

What time will Mr Brown be back to China?—Sorry. I don’t know ______.