---Where is my reference book? It was here a moment ago.---Someone ___ it by mistake.
| A．could have taken | B．must take | C．might take | D．must have taken |
相关试题
He made a suggestion _____ the meeting _____ be put off until next Tuesday.
| A．that; / | B．if; should | C．when; must | D．whether; can |
The little boy has not the _____ to lift the heavy 
box.
| A．energy | B．force | C．power | D．strength |
The number of the eggs _____ by the hen this month is about 28.
| A．lay | B．lied | C．lain | D．laid |
The new school is _____ our previous one.
| A．as three times big as | B．three times so big as |
| C．three times the size of | D．three times as bigger as |
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