Nobody knows _______broke into the house last night and stole the important papers.

Mr. Wu teaches English. We all like .

One of the most important things ineducation is to let students ____ positive emotions and experience in theprocess of their learning.

You look sad. What happened—Everyone__________ us to win the match, but we lost.

Excuse me, sir. When can we have a swim in the pool —Not until it _______ next month.