、This question is ______ easy, all the students can answer the question.
I can go ______ in summer.A. swim B. swimming C. to swim
“How does he often go to school?” “ ”A. By a bike B. By his bike C. On his bike
—Would you mind my _______ here?—Sorry, you’d better not.A. smoke B. to smoke C. smoking
There is no important information in the newspaper, _______?A. isn’t there B. is there C. is it
—Our country is becoming richer and stronger. —_______.A. So it is B. So is it C. It is so