---Look at the glasses on the desk. Are they David’s?---They belong to him. I saw him go out with glasses just now.
—Do you know when she____ back? --Sorry, I don’t know. I’ll call you when she ____ back.
The money they raised from the concert is____ it was expected.
.—Which month has_____ days in a year? ---February.
—We must do something to save wild animals. --You are right. We should make more rules to ___ wild animals_____being killed.
.—Work hard and you’ll______ one day. --You are right. Working hard leads to_____.