---- Is Ann knocking at the door?
--- No, it ______ be Ann. She has gone to Beijing.
| A．can’t | B．mustn’t | C．needn’t | D．may not |
Peter is my best friend. He often helps___science.
| A．me with | B．my with |
| C．me on | D．me of |
—I can’t find my CDs. —_______you put them in that bag.
| A．Must | B．May be | C．Maybe | D．May |
Reading aloud is the best wayEnglish.
| A．to learn | B．learning |
| C．learn | D．learns |
I left my keys in the room yesterday. I had to get in______the window.
| A．In | B．through |
| C．over | D．across |
My dad ________ a teacher when I grow up .
| A．wants me to | B．wants me to be |
| C．wants me | D．wanted |