I lost my friend’s book. So I have to _____it. A. spend B. cost C. pay for
Is this _______bike? No.________ is over there.
It’s snowing heavily outside. Put on your coat,_________ ,you’ll catch a cold.
What_______useful book it is! Yeah,it tells you how to play ______violin.
-We must act now because time is _____. -Yes. Let’s start.
We should _____ the power when our TV or computer is not used.