We can’t take part in the competition ________ we get our student card.
| A．before | B．if | C．While | D．as |
相关试题
-Why don't we choose that road to save time?
-The bridge to it.
| A． | has repaired | B． | is repaired | C． | is being repaired | D． | will be repaired |
In order to find _______ better job, he decided to study _________ second foreign language. 
| A．the; a | B．a; a | C．the; the | D．a; the |
—I don’t care what people think.
—Well, you _______
| A．could | B．would | C．should | D．might |
Owen wouldn't eat anythinghe cooked it himself
| A． | until | B． | since | C． | unless | D． | while |
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