—What do you think of the rules? —I thin
问题:
—What do you think of the rules?
—I think the sixteen-year-olds should be allowed _____ sports after school. [ ]
A. to play
B. playing
C. played
D. to playing
—What do you think of the rules?
—I think the sixteen-year-olds should be allowed _____ sports after school. [ ]
A. to play
B. playing
C. played
D. to playing