Miss Wang, I went to your office at 11:45 yesterdaymorning ,but you weren’t in. — I _____with a student in the classroom at thattime.

Your father’s never been to other countries, _________ he— ________. He plans to go abroad for a second time.

Next door to ours ________, who is no less than eighty. [ ]

My son coughed badly last night. What can I do–You ____ worry so much about it. Drinking more water will help.

When I walked past her room， she_______ an English song.