一 Have you counted the money yet?
— No. I've just put it in an envelop.
A：seen
B：gotten
C：calculated
He mustn't ________ a car _________.
人体的结构与巨大的杨树相比较谁更复杂？请分析说明．
答：____更复杂．
因为：构成人体的结构层次有：细胞→____→____→____→人体．
杨树比人体少了____这个结构层次．
I ____ (have) a fever. My face was wet, I felt hot, hot and hot.
