_____ the students in our class have incommon is _____ they are all working hard to pursue their dreams.

With so much _____ equipment, wood and paper in one place, there is a danger of fire. [ ]

Who should be responsible for the heavy burden of the students— ______ the test system instead of the teachers.

He is now playing football. It’s new one.

Hurry up! The play _______ for half an hour.