Where’s your brother —He ________ the library with his friend. He’ll be back soon.

When we got to the top of the mountain, we were nearly ______.[ ]

The girl is very shy, and seldom speaks until she ________ to. [ ]

we cannot close the gulf between us, we can try to bridge it so that we may be able to talk across it.

What are you busy with—The exhibition ____ in the city next week．