问题补充:
The other day,my friend John drove his car down the street at I thought was a dangerous speed andsurprised everyone in the car.
A. which,that
B. which,it
C. as,which
D. what,that
答案:
A. which,that
B. which,it
C. as,which
(答案→)D. what,that
解析: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。