The man didn't know___.A.when did Mr Wang leave for Tianjing.B.when Mr Wang left for Tianjing C.whether Mr Wang leaves for TianJing ,D.why she is late for school

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The man didn't know___.A.when did Mr Wang leave for Tianjing.B.when Mr Wang left for Tianjing C.whether Mr Wang leaves for TianJing ,D.why she is late for school

The man didn't know___.A.when did Mr Wang leave for Tianjing.B.when Mr Wang left for Tianjing C.whether Mr Wang leaves for TianJing ,D.why she is late for school
The man didn't know___.A.when did Mr Wang leave for Tianjing.B.when Mr Wang left for Tianjing C.whether Mr Wang leaves for TianJing ,D.why she is late for school

The man didn't know___.A.when did Mr Wang leave for Tianjing.B.when Mr Wang left for Tianjing C.whether Mr Wang leaves for TianJing ,D.why she is late for school
B
这是个复合句,主句:The man didn't know
宾语从句:当主句是一般过去时,从句一般也用过去,排除C,D
宾语从句的语序是陈述,即主语+ 谓语,排除A,特殊疑问句语序
翻译:那个人不知道王先生什么时候起程去天津

选B
首先宾语从句陈述句语序,排除A,然后时态要一致,前面是didn't know是一般过去时,后面也要是一般过去时,排除C和D,选B

B.

B

首先这是个宾语从句
所以从句是陈述句语序 排除A
其次主句是过去式
从句需要用和过去相关的时态 排除C D

选B