---Listen! Helen is singing in the next room.
---It ____be her. She has gone to Beijing.
| A．can't | B．mustn't | C．may | D．should |
accident n.
A.发生 B.意外遭遇 C.情况，状况
stomachache n.
A.胃 B.胃痛 C.喉咙痛
If you_______ have an ID card, they _____ let you in.
A. do, don’tB. don’t, won’t C.will, will
My parents are very happy to make ______ money.
A .many B. little C. a lot of
We’ll go to the Summer Palace _____it doesn’t rain this Saturday.
A. when B. if C. until