问题

What ____ this in English?—It _____ a book.
A:is, am
B:is, are
C:are, is
D:is, is
B:is, are
C:are, is
D:is, is
正确答案是:
同类题型
He is _______ clever boy that he can solve _____ many difficult problems.
____ do you clean the classroom?— Three times a day.
Excuse me, where is Mr. Green’s office? — Sorry, I don’t know. I ___here for only a few days.
Never _________ your dream. If you keep it on, you’ll achieve it one day.
During this term’s Reading Week, I read the most books in our class. No one read than I.