Question

I often have trouble _________ up the morning.
A. waking           B. to wake            C. wake

Answer 1

A

解析试题分析： 句意：我经常早上很难醒来。此题考查European是以辅音音素开头的，故用have trouble doing sth做某事有困难；根据句意，故选A。
考点：考查非谓语动词。