问题

If he ________harder , he will catch up with us soon .
A: study
B:studies
C:will study
D: studied
B:studies
C:will study
D: studied
正确答案是:
同类题型
________ seems that Mary has known that bad news.
Could you please sweep the floor I’m going to cook dinner.— ________. I’ll do it at once, Mom.
What way are you thinking of ________ ridof this kind of pollution
Is this the place ______ he used to live?
My sister met him at the Grand Theater yesterday afternoon, so he ________ your lecture.