Mr. Smith __________ to have a talk with you. He will be here in a minute.

My sister has never played tennis before. This is the first time she __________ to play.

——Did you find the missing couple in the mountain yesterday?
——No, but we _____ to get in touch with them ever since.

----- You seem in low spirits. Anything wrong?
----- I ______ in the important exam. I let my parents down.

---- The battery in my cell phone is running low.
---- I _____ that last night before we went to bed.

This is the first time we ______ a film in the cinema together as a family.

--The window is dirty.
----I know. It ______ for weeks.

What shall human beings do if oil        sometime in the future?

Don’t call me at 9:00 o’clock tomorrow morning ,when I          a lecture at Harvard.

If you       be in time for the early bus , be sure to get up before five o’clock in the morning.