Love your parents __________ they are alive. Don't wait until it is too late.
A.while B.though C.because D.unless
Some jazz musicians are great because they can music while playing.
A. put up B. set up C. take up D. make up
We should keep the windows ________ in order to let the fresh air in.
A.opened B.opening C.open D.to open
Betty felt so tired last night that she ____________ fell asleep in bed after lying down.
A.recently B.suddenly C.frequently D.immediately
—Mike, let’s have a picnic after school.
—Sorry. I have ________ Jack to work on the English report with him.
A.advised B.expected C.suggested D.promised
We don’t allow taking magazines out, but you ____________ copy the article you need on the machine over there.
A.can B.must C.should D.would
