—Listen ! Helen is singing in the next room.
It ____ be Helen. She has gone to Beijing.
| A．can’t | B．mustn’t | C．may | D．needn’t |
I am very excited _______ I hear the news that the high-speed rail will be built from Hefei to Wuhu.
| A．before | B．when | C．until | D．While |
In Tianjin Big fire more than one hundred people died, fifty-eight fire fighters.
| A．remaining | B．including | C．wondering | D．managing |
— It’s too late. I must be leaving now.
— Oh, it’s raining hard outside. You’d better wait it stops.
| A．until | B．since | C．while | D．Though |
What does the sign
mean?
| A．No parking. | B．No pho tos. |
| C．No eating. | D．No smoking. |
— Don’t run through the red light. That’s the traffic law.
— OK，I won’t.
| A．across | B．against | C．below | D．Past |