单项选择题
A.demonstration B.frequency C.description D.instruction
This mountain range has many high（）and fertile valleys....
单项选择题This mountain range has many high（）and fertile valleys.
A.peaks B.hills C.phases D.pink
His proposal is（）to all of us and you do not need to te...
单项选择题His proposal is（）to all of us and you do not need to tell us more about it.
A.apparent B.appearing C.approaching D.apart
