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Haveyougotanytroublethispractice?[]A.todo,listeningB.doing,listeningC.doing,listenD.do,listen

题目详情
Have you got any trouble ____this ___ practice?
[     ]
A. to do, listening   
B. doing, listening      
C. doing, listen      
D. do, listen
▼优质解答
答案和解析
B