有外宾向你问路,你告诉他后,他对你说“Thank you”, 你应该说:
Is that your ruler? No, it’s ________ruler.A. your B. you C. my
What _______ you? I _______ a cook.A. are… is B. is…is C. are…am
This is _______ nurse. That is ________ ambulance manA. a…a B. an…an C. a…an
I _________ Bill’s brother.A. am B. is C. are
How old _______ Alice?A. am B. is C. are