Is the woman _______ singing in the hall you music teacher?Oh, it ________ be her. She is ill at home today.
If we __________ the problem,we will be happy.
----Can you come to my party on Sunday ? ----________.
A good friend likes to do the same things ________ me.
----Why does your brother stay at home every day? -----Because he is younggo to school.
He studies ______ at Chinese for one year, but he can still_______speak it.