高考英语词汇最后冲刺试解析 第781天

1029.I think father would like to know ____ him a quick note.

A.which
B.why
C.what
D.how

1030.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

1029.答案是C;be up to固定短语意为:忙于，从事;其中to为介词,后须接宾语，故选C。
1030.答案是C;at后接宾语从句,此句中what作宾语从句的主语。