The boy_____English on the raido when I___his door.A.learned;was opening B.was learning;opened C.learned;opened D.is learning;open
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Theboy_____EnglishontheraidowhenI___hisdoor.A.learned;wasopeningB.waslearning;openedC.learned;opened
The boy_____English on the raido when I___his door.A.learned;was opening B.was learning;opened C.learned;opened D.is learning;open
The boy_____English on the raido when I___his door.
A.learned;was opening B.was learning;opened C.learned;opened D.is learning;open
The boy_____English on the raido when I___his door.A.learned;was opening B.was learning;opened C.learned;opened D.is learning;open
选 B
翻译：当我打开他的们的时候,这个男孩正在录音机上学英语
when 后面多用一般过去时,主语用进行时态
表示：当某事发生的时候,某人正在做.