问题
选择题
—How long has your brother _________ in the army ?
—About five years.
A．taken part
B．joined
C．served
D．attended
答案
答案：C
how long 与延续性动词连用，在四个选项中，只有C是延续性动词，故选C
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—How long has your brother _________ in the army ?
—About five years.
A．taken part
B．joined
C．served
D．attended
答案：C
how long 与延续性动词连用，在四个选项中，只有C是延续性动词，故选C