The boy cried out ___ the top of his voice.

问题描述:

The boy cried out ___ the top of his voice.
A.at B.in C.on D.to 为什么,麻烦讲的详细点,因为期末考!

at the top of his voice是“以最高的声音的意思”,用A,at是正确答案,是固定搭配.还有一个固定短语是,on top of...在……之上;另外;熟练掌握,驾驭的意思