Mary and Joy are ____ Class One. They are ____ the USA. A. from; in B. in; from C. to; from D. in; to
—Which colour do you like _______, blue or green? —Blue.
—______ you help me mend the radio? —Yes, I can.
There is ______ wrong with this computer. It doesn’t work.
Parents often ask their children _____ their Internet friends because they may be in danger.
Look left and right before you ________the road.