问题
选择题
—Can I go to the park, Mum?
—Certainly. But you ______ be back by six o’clock.
A．can
B．may
C．might
D．must
答案
答案：D
考查情态动词的用法。同意孩子去公园，但是有要求：必须在6点之前回来。must“一定，必须”。
搜题请搜索小程序“爱下问搜题”
—Can I go to the park, Mum?
—Certainly. But you ______ be back by six o’clock.
A．can
B．may
C．might
D．must
答案：D
考查情态动词的用法。同意孩子去公园，但是有要求：必须在6点之前回来。must“一定，必须”。