After a long walk from the lake to the school, most of the students went back to the classroom, __________.

Shall we stop for lunch _______ shall we drive on—Let’s stop for lunch, but the driver can’t drink _______ drive.

o you have anything _________ thisafternoon If there is nothing to do, I wonder if I can ask for a leave．

One-third of the country _____ covered with trees and the majority of the citizens _____ black people. [ ]

We can have a day out tomorrow. Why don’t we go fishing —________