now there are already robots working in factories .为什么用working 而不是work

Now ,there are some reasons.first Now ,there are three subwaies in our city There are big desks in the classroom now的意思? in are now tall buidings many there the city(翻译 ) there are lots of ()(west) restaurants in sunshine town now now there are many big houses的翻译 The boys are ___ ( run) over there now. Now there are lots of animal food's s____ there are a lot of _____in my hometown now There are a lot of light r____ in shanghai now There are many c______ and universities in XX now There are many wonderful a____ on TV now帮忙填空There are many wonderful a____ on TV now首字母填空. there were lots of snakes before,but now there are few.(改为同义句)there ____ ____ ____a lot of snakes,but now there are few. there are no books on the shelf now.(同义句） there _______ ________ books on the shelf now. There are more trees now.(用in 50 years 替换now改写句子) There more trees in 50 years. There is a now (l )in my school.There are many books in it翻译+答案 there were lost of snakes ago ,but now there are few 改为同义句 In the past there was no s____ school here.But now there are some.