问题
选择题
She couldn’t help, even though she tried not to, ____ at the strange clothes her friend was wearing.
A．to laugh
B．laugh
C．laughing
D．laughed
答案
答案：C
这句首先要知道：even though she tried not to是插入语，考查的是can’t help doing情不自禁地做…,句意是：即使她想忍住，还是情不自禁的嘲笑朋友穿的奇怪的衣服。选C。