—Is this your mother?
—Yes. _____ is. [ ]
A. this
B. they
C. she
D. it
答案：D
While_______ us her experience in Africa, she couldn’t help crying.
A．told
B．to tell
C．is telling
D．telling
ATF是一种（）油液。
A.转向助力油
B.制动液
C.自动变速器油
D.齿轮油
