2. 外语
  3. You can never imagine what great trouble I have had______ the customer to withdraw a claim.

You can never imagine what great trouble I have had______ the customer to withdraw a claim.

admin2016-01-26  31
问题 You can never imagine what great trouble I have had______ the customer to withdraw a claim.
选项 A、persuade
B、to persuade
C、persuading
D、persuaded
答案C
解析 此题容易根据had误选过去分词persuaded。解题关键在于识别固定短语have troubledoing sth．“做某事有困难”，what great trouble I have是一个感叹句结构，将其转化成正常结构，即I have had great trouble in doing．．．，所以答案为C。
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