题目内容
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 |
C
答案 C [at后接宾语从句。当宾语从句中缺少主语、宾语或表语时,要用what引导,此句中what作宾语从句的主语。]
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