Our teacher is always busy preparing lessons until 11 o'cloc
Our teacher is always busy preparing lessons until 11 o'clock at night,____
Our teacher is always busy preparing lessons until 11 o'clock at night,______ we students have gone to sleep.
A.that time B.by which time C.by that time D.which time
Our teacher is always busy preparing lessons until 11 o'clock at night,______ we students have gone to sleep.
A.that time B.by which time C.by that time D.which time
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"The teacher is a busy job"是否正确?
1年前3个回答