---Do you know how this disabled man succeeded in running such a big company?
--- I don’t know , but I think he __________ many difficulties.
| A．could have gone through | B．must have gone through |
| C．might go through | D．need go through |
相关试题
One learns a language by making mistakes and_________them .
| A．correct | B．corrects | C．correcting | D．to correct |
．I will do what I can_________ the people in trouble .
| A．help | B．to help | C．help | D．helped |
The teacher told us that water_________at 100℃ .
| A．is boiled | B．boiled | C．was boiled | D．boils |
．It was three o’clock_________we finished the work .
A．wh ere |
B．by which | C．when | D．since |
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