A-A+
Listen to that laughter! They______themselves.
问题详情
Listen to that laughter! They______themselves.
A．must enjoy
B．must be enjoying
C．may be enjoying
D．can be enjoying请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：B
解析：must be doing sth．用于推断现在必定正在发生的事情。
考点：
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