Some bird和Some birds哪个对 能当句子用吗?如果不能?该怎么改?开头的Some不能去掉!

改同意句.some of birds stay there for a short time改为some of bird There are some birds in the picture怎么改否定 would like some salad some不是不能加some some of和some的区别?怎么用? There are some birds in the sky改一般疑问句怎么改 some和any的句子 some开头的英文单词 some fruit 和some fruits哪个搭配是正确的? I can see some birds in the tree.对some birds提问 There are some birds in the trees对some birds 提问 Are there some lakes in the village?是对是错,是错该怎么改 stop to do some thing和stop doing some thing该怎么用?