英语:用合适的介词填空,补全句子①How much are these socks?---Two dollars ___
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①How much are these socks?---Two dollars __for_ one pair

②We have watches _in__ red and black

连词成句

③for , they , one , only , $5 , pair , are

____They are only 5$ for one pair.__________________________

④vegetables , good , they , very , all , prices , the , at ,sell ____

They _sell vegetables all at very good prices______ __________________________________