单选题 "When ______ again? When he ______ , I'll let you know."

[A] will he come, will come
[B] will he come, come
[C] he comes, will come
[D] will he come, comes

【正确答案】 D

【答案解析】[解析] 本题主要考查状语从句的时态。对话第一句是简单将来时，第二句中包含状语从句。主句是将来时，状语从句时态为一般现在时。
[知识点] 状语从句的重点就是从句与主句的时态关系，其中“主将从现”是最常见到的考点之一。如：He will phone me as soon as he comes back．他一回来就会和我联系。