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【单选题】 I do not know where (could he have) (gone) (so early) (in the) morning.
A．could he have
B．gone
C．so early
D．in the

网考网参考答案：A
网考网解析：
where引导宾语从句，从句语序不倒装。改“could he”为“he could”。 查看试题解析出处>>