有关情态动词的选择
My brother _____ be really difficult at times even though he’s a nice boy in general．
\x05A．shall \x05B．should \x05C．can \x05D．must
这题选C,我选了D,
人气：157 ℃ 时间：2020-05-17 23:08:14
解答
can 表示一般普遍的情况
It can be rather difficult to solve the problem.
must只有命令义
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