Do you think the concert last weekend was of __________?
. --- He has to finish the experiment today. He must be in the lab,________? ---That s quite possible.
“Long time no see”is _______sort of imformal, but it is part of ______language Americans use daily.
In this factory, suggestions often have to wait for months before they are fully _____.
----__________?----It depends on what it is.
. ______ is quite natural; a beginner can't read the books written in English very quickly.