He can do what he can______ the children in his neighborhood.
A. help B. to help C. helps
—Canada is one of the largest______ in the world.
—That is, it is larger than ______ country in Asia.
A. country; any other
B. countries; any other
C. countries; any
—Lucy can't go mountain climbing with us tomorrow.
—_________ I have to do housework at home.
A. So can I.
B. Neither can I.
C. Neither I can.
______ of the girls will join the summer camp to visit England.
A. Three fives B. Third fifths C. Three fifths
It is careless ______ him to lose his wallet again. I think it necessary ______ him to be more careful next time.
A. of; to B. of; for C. for; for