I didn’t hear anyone knocking at the door because I _______ to music in my room.
A.was listening B.listened
C.have listenedD.am listening
“I’m sorry that you’ve missed the last bus. It _______ only five minutes ago.” said the man.
A.has leftB.had left
C.would leave D.left
She shouted with friends and then stood up _______ she could see the film stars clearly.
A.in orderB.as
C.such asD.so that
Every day students in our school will do outdoor activities ______ there is a heavy haze(雾霾).
A.unlessB.while
C.untilD.since
Could you tell us _______ we are going to have the meeting this Friday afternoon?
A.whatB.whereC.whoD.which
The new software can help us call a taxi immediately, so we _______ wait too long.
A.needn’t toB.needn’t
C.don’t needD.not need to
