问题
选择题
The other day，my friend John drove his car down the street at _______I thought was a dangerous speed and surprised everyone in the car.
A．which，that
B．which，it
C．as，which
D．what，that
答案
答案：D
D点拨 what 引导宾语从句，that 指代上文提到的内容，在后一句中做主语，前后是and连接的并列句。