问题
选择题
We will lose the game unless he ______ us.
A．helps
B．helped
C．was helping
D．has helped
答案
答案：A
考查时态。Unless除非，引导条件状语从句，主句用将来时，从句用一般现在时代替将来时，故选A。
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We will lose the game unless he ______ us.
A．helps
B．helped
C．was helping
D．has helped
答案：A
考查时态。Unless除非，引导条件状语从句，主句用将来时，从句用一般现在时代替将来时，故选A。