—I don't imagine Russ and his poor dog had a good time on 　the deserted island，________？—I have no idea. 

--Let us see your pass, ___. ---Sure.

You must have been caught in the traffic jam yesterday, ______you?

—What _____ Yu Ping usually _____ in her free time?—She usually goes to the library.

 –           does Tom read English?-- At seven o’clock.