问题描述：
-Excuse me ,could you tell me ____ later on -Wait a minute .It is coming in ten minutes .
A.if the next train arrives B.if the next train will arrive
C.when the next train arrives D.when will the next train arrive
这道题为什么选B,问句是宾语从句吗?请详解,
A.if the next train arrives B.if the next train will arrive
C.when the next train arrives D.when will the next train arrive
这道题为什么选B,问句是宾语从句吗?请详解,
问题解答：
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