29. He was busy preparing a speech , only _______ once in a while to rise from the table for a tea .

题目简介

29. He was busy preparing a speech , only _______ once in a while to rise from the table for a tea .

题目详情


29. He was busy preparing a speech , only _______ once in a while to rise from the table for a tea .
A.stoppingB.to stopC.to have stoppedD.having stopped
题型:单选题难度:偏易来源:不详

答案

A

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