The boy likes playing jokes on his classmates, __________ of course makes him popular.
From the top of ______ Empire State Building, you could see up to ______ distance of 130 kilometers on a clear day.
He is always full of ______ as though he never knew tiredness.
Apples are usually sold by ______weight, and eggs are sometimes sold by ______ dozen.
Susan, ______ university student from Europe, teaches me ______ art in her spare time.
These young people are now making an active ______ to beautify our city.