改一般疑问句,there were many tress on both sodes of the road many years ago

There were some hospitals im thistity改一般疑问句 There were about nine hundred people at the concert.(改否定句,一般疑问句） 改一般疑问句,there were many tress on both sodes of the road many years ago there were many pandas.改为一般疑问句 一般过去时改该一般疑问句是不是跟改现在进行时一样例句：there were some moths in the box?改成一般疑问句 There is a bus 改一般疑问句 there are some piains改一般疑问句 Ma little brother drinks milk every evening改一般疑问句. They were at school yestrday改一般疑问句 all the students were very excited改一般疑问句快 There were many trees near my home before.(一般疑问句) There were some birds in the tree.改成一般疑问句 there were some actors at the aquarium改为一般疑问句 There were some buses.改成一般疑问句,怎么修改? There were some birda in the tree.(改为一般疑问句) There were some seals.(改为一般疑问句并回答) 把There were some girls here.变成一般疑问句. There are some birds in the sky改一般疑问句