下列哪种古人类的化石出现较早[ ]
A.“露西”少女
B.能人
C.北京猿人
D.山顶洞人
答案:A
Thank you for the reasonable plan that you put ________ to help improve people’s living level step by step.
A.forward
B.out
C.up
D.on
The girl can't be Mary, for she _____. [ ]
A. has been to London
B. has gone to Paris
C. was going to London
D. had gone to Paris