There is no need ______ because Mr. Smith is still sleeping.

—Isn’t Ann’s husband over there? —No, it _____ be him — I’m sure he doesn’t wear glasses.

The flowers in my room         every day, or they’ll die.

 When I lived with my roommates in the university, we ________ often talk into the night.

—Catherine, I have cleaned the room for you.—Thanks, you __________it. I could manage it myself.