There__a lot of pandas.该用Used to have还是Use to be

There__a lot of pandas.该用Used to have还是Use to be There used to be a lot of pandas,_______ ______? There used to be a lot of pandas 怎样改为反意疑问句 There ___ a lot of sheep in the hill.A.used to be B.use to b used to和be use to 加do还是doing be used to和be use to there used to be a lot of manatees是什么意思 be used to doing,be used to do,used to do,be used for,be use use to,be used to,get used to的区别 be used to与have used to I____upset to have straight hair.A.be B.used to was C.use to 反义疑问句：There used to be a lot of trees here,____there?为什么可以用w