Aleksandra
辅导教师Hey learners, try this quiz which tests learners' ability to understand and correctly use the phrase "must have been" in context.
She must have been waiting for hours.
Why do you think she was tired?
She was working late.
She must have been exhausted.
She was sleeping all day.
She had an easy day.
65 人已做了小测试
2025年2月14日 20:16
