蛙泳腿部动作要领是（）
A.收腿
B.翻脚
C.蹬夹腿
D.滑行
参考答案：A, B, C, D
某地点的纬度是北纬85度，请问那里可以看到的动物是（ ）
A．企鹅
B．大象
C．袋鼠
D．北极熊
—Do you remember _______?
—Yes, I do. [ ]
A. what did he say
B. that he said
C. what he said
D. did he say what
