—Would you like to play tennis with me tomorrow?—Sure, it rains.A.since B.but C.unless
One learns a language by making mistakes and _______ them.
_____such heavy pollution already, it may now be too late to clean up the river.
—Will you stay for lunch? —Sorry, ____________. My brother is coming to see me.
—Are you coming to Jeff’s party? —I’m not sure. I__________ go to the concert instead.
We needed a new cupboard for the kitchen. So Peter made____________from some wood we had.