Bhind the factory there used to (1 )much waste,( 2 1 have还是be ,2 _英语解答

Bhind the factory there used to (1 )much waste,( 2 1 have还是be ,2 usedn't it还是 usedn't there

人气：314 ℃　时间：2020-04-24 11:50:17

解答

Behind the factory there used to 【be】much waste,【usedn't there】?