When he was old, Mr Smith _____ sit for hours without saying anything.
| A．would | B．should | C．must | D．will |
---Must I see a doctor right now?
----No, you______see a doctor for the time being.
| A．can’t | B．shouldn’t | C．needn’t | D．mustn’t |
This work, when we find it and do it----_________only as a hobby at first---is a key to our true happiness.
| A．even if | B．only if | C．as if | D．if however |
.The vocabulary and grammatical differences between British and American English are so few and unimportant as hardly______.
| A．noticed | B．to notice | C．being noticed | D．to be noticed |
Nowadays, many young people have no idea how to get to_____they want to go.
| A．which | B．Where | C．the place which | D．there |
The declaration____saving the rivers and giving people their traditional rights over them.
| A．calls for | B．calls up | C．calls off | D．calls in |