—Listen ! Helen is singing in the next room.—It __________ be Helen. She is in Tianjin now.
Mary said she to school the next Sunday. A.won’t go B.isn’t go C.wouldn’t go
My father will be back from Nanjing ___ a week. A.in B. after C. behind
I want to be _____ actor in the future. A.a B. an C. The
Email is very popular today. People ______write letters to each other now.
Difficulties are nothing _____we are not afraid of them.