There's used to be many people smoking in the office,but now

There's used to be many people smoking in the office,but now There used to be many turtles in the lake.Yes ,but there are A:there used to be many traffic accidengs in China.B:yes,but We used to cross the river by f___ but now there's a bridge. 英语翻译In the West many people used to belive there was a "man in the past ,there __ (be) no people here,but now the govern There used to be many green trees in this area in the past . i thought there would be many people in the meeting room,but — There used to be lots of fish in the lake .— Yes ,but ther smoking is harmful to one's health,but why are there many sm The computer____(be)not in the office.But now it____(be)ther He used to ? in the morning,but now he is used to ? at night