There was a large box behind the door and Peter couldn't falling over it in the darkness

问题补充：

There was a large box behind the door and Peter couldn falling over it in the darkness.

A. help

B. resist

C. avoid

D. prevent

答案：

A. help

B. resist

(答案→)C. avoid

D. prevent

解析：avoid 避免(后接动词或名词): He tried to avoid answering my questions. can (couldn ) help doing sth. 禁不住做......不由自主地做......。 can (couldn ) resist doing sth.禁不住做......: I couldn resist laughing.