There _____ a lot of tigers there,but now they are endangered.A.were used B.used to C.used to be D.used to have说明原因喔,也要整句翻译吧

there are a lot of trees ,_____?反义疑问句 There _____(be)a lot of wind this summer. there are a lot of trees in _____ of North china. A many B much C lot D a few There are a _____ books on the desk A.lot of B.a lot of C.any there are a lot of/There is a lot of?There ( ) a lot of vegetables.There ( ) a lot of milk. there a lot of traffic?” there are a lot of there is a lot of there is a lot of There _____ (be)always a lot of people in the shop on Sunday. there _____ (be) a lot of flowers in the park 添was还是were? there are quite a lot of _____(different) between the houses There are a lot of things _____(do)in my school填什么 There is a lot of homework for us _____(do) today. There _____ (be) a lot of water in the reading room. There is a lot of _____ (rain) in summer.急,要为什么. there are a lot of things in the new supermarket.you _____ it ,it sells it. There used to be a lot of tall trees on that mountain,_____?翻译疑问句