1. [单选题]
A.
B. Disappointedly
C. Unfortunately
E. Coincidentally
G. Comfortably
2. [单选题]How did the calf feel about the mother elephant’s roaring?
A. It was a great comfort. B． It was a sign of danger.
B. It was a call for help. D． It was a musical note.
3. [单选题]在真蕨植物叶的背面，肉眼能看到各种形状的孢子囊。( )
A. 正确
B. 错误
