问题
选择题
We’d better__________when he is thinking，as he prefers to solve problems on his own.[ ]
A．wake him up
B．keep him away
C．leave him alone
D．call him up
答案
答案：C
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We’d better__________when he is thinking，as he prefers to solve problems on his own.[ ]
A．wake him up
B．keep him away
C．leave him alone
D．call him up
答案：C