摘要: The boy was busy doing his homework, only once in a while to look out of the window. A. stopping B. to stop C. stopped D. having stopped
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The boy was busy doing his homework, only ____ once in a while to look out of the window.
A. stopping B. to stop C. stopped D. having stopped
查看习题详情和答案>>27. The boy was busy doing his homework, only_____once in a while to look out of the window.
A. stopping B. to stop C. stopped D. having stopped
查看习题详情和答案>>The boy was busy doing his homework, only _______ once in a while to look out of the window.
A.stopping B.to stop C.stopped D.having stopped
查看习题详情和答案>>
27. The boy was busy doing his homework, only_____once in a while to look out of the window.
A.stopping | B.to stop | C.stopped | D.having stopped |