I was doing my homework when my mother came into(entered) the room.
難易度：高（12語）
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Does he always use this desk when he studies?
They were not listening to the teacher then.
What was your brother doing when you came back home from school?
When the teacher is in the classroom, the students are very quiet.
My uncle studied English and German when he was young.
Were you studying English?
When did you do your homework?
There aren't any girls in this school.
How many students are there in this class?
My brother is doing his homework in his room.
She will be(become) a good teacher.
The examination will not(won’t) be so difficult(hard).