The head teacher comes to the classroom ______ to see if the students are quiet.
A. here and there B. now and then
C. sooner or later D. here and now
I’ve been playing the piano for four hours and I am ________ it.
A. tired of B. tired in C. tired on D. tired through
Look, a demonstration ________ on Main Street.
A. is hold B. is holding C. is being held D. will hold
What he has done has a bad effect ________ the children.
A. in B. on C. by D. through
Zhongguancun was ________ as a special economic zone in the late 1990s.
A. set in B. set on C. set up D. set about
The hall ________ joy and happiness.
A. is filled B. full of C. is filled with D. is full in
