--- Grandpa, this morning you were watching _____ alarm again. Why?
--- Because it has _____ meaning to me, my dear grandson.
| A．an; a | B．an; / | C．the; a | D．the ; / |
We tried our best to ______, but she didn’t stop crying.
| A．call her up | B．cheer her up | C．give her up | D．wake her up |
By the time of last year, she ______ the piano for five years.
| A．learnt | B．has learnt | C．had learnt | D．will learn |
—Listen! Peter is singing in the classroom!
—It _____ be him. He has gone back to his hometown.
| A．must | B．mustn’t | C．may not | D．can’t |
Keys _______ opening the lock in the door.
| A．used for | B．are used | C．are used to | D．are used for |
—I have never been to the Great wall.
—If you have an opportunity _______ there, you must take it.
| A．to go | B．to going | C．going | D．go |