The other day，my brother drove his car down the street at________ I thought was a dangerous speed．

1. A.
   as
2. B.
   which
3. C.
   what
4. D.
   that

The other day，my brother drove his car down the street at ________ I thought was a dangerous speed. 　　　　　　　　　　　　　　　　　　　 (上海春招 2004)

A. as　 　　　 B. which C. what　 　 D. that　

 The other day，my brother drove his car down the street at    _____I thought was a dangerous speed.

A. as                B. which                      C. what          D. that

The other day，my brother drove his car down the street at________ I thought was a dangerous speed．

[　　]

The other day，my brother drove his car down the street at________ I thought was a dangerous speed．

[　　]