----May I smoke here ?
-----If you , choose a seat in the smoking section .
| A．should | B．could | C．may | D．must |
Two friends were talking about education, _______, about the kind of education that they received in their youth.
| A．or else | B．worse still |
| C．or rather | D．above all |
The temperature has risen to more than 20 degrees centigrade. It is quite hot _______January in Zhejiang.
| A．for | B．in | C．as | D．like |
--- Jack fell off the ladder yesterday, but he is all right now.
---What a lucky dog! He _______ himself badly.
| A．could injure | B．must have injured |
| C．should injure | D．might have injured |
---Tell us, Mark, what is the cause of the American Civil War?
---Well, is it _______the black slaves wanted freedom?
| A．how | B．why |
| C．because | D．when |
--- I can’t carry the luggage. It’s so heavy.
--- Why not have someone strong enough_______ you a hand then?
| A．give | B．to give |
| C．giving | D．to have given |