单选题
They will not start the project until the board chairman ______ back from South Africa.
A、
will come
B、
is coming
C、
came
D、
comes
【正确答案】
D
【答案解析】
[解析] 考查动词时态。until引导的时间状语从句表将来,主句用一般将来时,从句刚一般现在时,故选comes。
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