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29.Hewasdoinghishomeworkthelightwentout.A.whenB.whileC.beforeD.until
题目详情
29.He was doing his homework ____ the light went out.
A.when B.while C.before D.until
A.when B.while C.before D.until
▼优质解答
答案和解析
He was doing his homework when the light went out.
当灯熄灭时他正在作家庭作业.
当灯熄灭时他正在作家庭作业.
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