—How ___________ your weekend?
—It ___________ great. But I ___________ tired now.
A:was; was; am
B:is, was; was
C:was; is; am
D:is; is, was
以“心中有话对你说”为题目,写一篇作文。要求:①可叙述经历,抒发情感。②不少于500字。
地球上最古老、最原始、结构最简单的动物是( )