----Will Mr. Smith join us in the party ? ----He would, but he _____not . He sometimes likes to stay alone. A must B can C need D may
—What time would it be ______ for me to come round? — Any time will do as long as you are free
They'll have a beer together______,talking about their separate life, but not often.
The twins are so much alike that no one can ________one from the other.
When I walked past the street, seeing the children playing happily, their happy laughter _______memories of my childhood.
Although the old man is in his sixties, ___ he walks fairly fast.