Question

【题目】The roller coaster is moving _____ high speed. How exciting!
A.with
B.at
C.in
D.For

Answer 1

【答案】B
【解析】句意：过山车正在以高速移动，多么激动呀！A. with带有；B. at以……；C.in在……里面；D. for为了……。at high speed 以……速度。根据句意，故选B。