“_____ when does the pub stay open？”  “About midnight.”

_________anyone should want to kill her was unbelievable.

He must have attended the meeting yesterday, ___he?

Since Shanghai won the right to host the World Expo, over half a million people have volunteered to ___________in all the Shanghai Expo projects .

1 feel that one of my main duties ______ a teacher is to help the students to become better learners.