…Mr．Ding，Ihavesometrouble

问题详情：

… Mr．Ding，I have some trouble _________ the passage!

  … Remember ________ it three or four times at least!

  A．to understand；reading                  B．understanding；reading

  C．understanding；to read                  D．to understand；to read

【回答】

C

知识点：相似 相近词比较

题型：选择题