America will never again have as a nation the spirit of adventure as it ______ before the West was settled.
| A．has | B．did | C．was | D．would |
相关试题
You _____ phone him if you want to, but you _____! He will surely phone you.
| A．may; mustn’t | B．have to; needn’t | C．can; needn’t | D．can; doesn’t need |
My aunt _____ here by now, for she took the early bus.
| A．must arrive | B．can arrive | C．may arrive | D．ought to have arrived |
The pilot kept calm in the terrible storm, otherwise the accident ______.
| A．couldn’t be prevented |
B．mustn’t have prevented |
C．wouldn’t have been prevented |
D．shouldn’t prevent |
You _____ pay your library fines. If not, you _____ not be allowed to graduate.
| A．may; should | B．should; need | C．must; will | D．will; can |
If I ________ plan to do anything I wanted to. I’d like to go to Tibet and travel through as much of it as possible.相关知识点
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