They often help the old man (clean the room.)就括号内提问 ___ ____they often help the old man ____?
They often help the old man (clean the room.)就括号内提问 ___ ____they often help the old man ____?
英语人气:615 ℃时间:2019-08-16 21:48:08
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What do they often help the old man do?
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