What a nice day! We should go sightseeing ________ watchingTV in the hotel.

No student _________ go out of the school campus after ten o’clock at night without permission, according to the school regulations.

Work gets done _______ when people do it together,and the rewards are higher too.

The first thing ________ I did was to seeif there were any products ________ might help me, but there only seemed to bepowders ________ to kill snakes.

Excuse me, how can I get to the post office—Go the bridge and turn left. Walk the museum, and you’ll see it.