It is only when you nearly lose someone ____________ you fully realize how much you value him.

In our class there are 46 students, ______ half wear glasses.

There is a police car _____ the bus. The police are watching the traffic.

Daming often goes swimming ____ two o’clock ____ Saturday afternoon.

Do you know if Sue ______ to the movie with me tomorrow—I’m not sure, either. If she ______, you’ll go alone.