James has just arrived, but I didn't know he ______ until yesterday.
A、
will come
B、
was coming
C、
had been coming
D、
came
【正确答案】
B
【答案解析】
本题考查过去将来时，由于come为短暂性动词，所以A、C项语法错误，D项为过去时，只有B项结构正确。
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