A new_____bus service to Tianjin Airport started to operate two months ago.
A.normal B.usual C.regular D.common
It is difficult for us to learn a lesson in life_____we’ve actually had that lesson.
A.until B.after C.since D.when
Lucy has_____all of the goals she set for herself in high school and is ready for new challenges at university.
A.acquired B.finished C.concluded D.achieved
The glass doors have taken the place of the wooden ones at the entrance, in the natural light during the day.
A.to let B.letting C.let D.having let
Hardly could he_____this amount of work in such a short time.
A.get through B.get off C.get into D.get down
________ fire,all exits must be kept clear.
A.In place of B.Instead of C.In case of D.In spite of
