He explained ______ for his father's birthday party.
A.why was he late B.why is he late
C.why he is late D.why he was late
Dozens were killed while fighting a fire that ______ this summer.
A.broke in B.broke out C.broke up D.broke down
Many nurses, ______ were retired, headed for affected areas to help.
A.most of which B.most of whom
C.most of them D.most of who
People were to find that some species were going extinct, which was a ______ trend.
A.astonishing; disturbing B.astonished; disturbed
C.astonishing; disturbed D.astonished; disturbing
Not only the students but also the teacher ______ against the plan in yesterday's meeting.
A.is B.was C.are D.were
In my view, ______ impresses me about her writing is the passion she shows.
A.who B.which C.what D.whether
