题目内容
【题目】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
【答案】C
【解析】
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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题目内容
【题目】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
【答案】C
【解析】
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。]