Question

When Peter speaks in public, he always has difficulty ______ the right things to say.

1. A.
   thinking of
2. B.
   to think of
3. C.
   thought of
4. D.
   think of

Answer 1

A
试题分析：考查固定词组。固定词组have some difficulty (in) doing sth做某事有困难。句意：当Peter当众发言的时候，他总是很难想起要说的事情。故A正确。
考点：考查固定词组
点评：固定词组have some difficulty (in) doing sth做某事有困难，注意其结构的变化。