Wear
somebody
out
:使疲乏,使精疲力竭
例如:The
football
game
really
wore
him
out
this
afternoon.
译为:今天下午的足球赛的确累坏他了。
而例句中是指Helen经过长时间步行后精疲力竭,即:wear
Helen
out,
所以这儿需要用wear
out的被动态置于句首,即答案D,而答案A是动词的完成时.
被动态过去分词词组worn
out
作为非谓语置句首,表原因,等于Because
she
was
worn
out
after
a
long
walk...