完全形成的人最早形成于[ ]
A．二三百万年前
B．三四百万年前
C．四五百万年前
D．五六百万年前
答案：A
—Some wine ?
—Thank you ________.I have to drive home.
A．With pleasure
B．That would be nice
C．I would rather not
D．Just what I needed.
If we _____ nothing, there _____ fewer and fewer tigers in the world. [ ]
A. will do; will be
B. do; will be
C. don't do; will be
D. do; will have
