按括号内要求改写句子9^-[2O1h*_7]3j)T8p/y(W4P7t/X/F8v8s8p
There are some birds in the sky. （变为否定句）9^-[2O1h*_7]3j)T8p/y(W4P7t/X/F8v8s8p
There 6\-t'j9c3{;z;@.C1H2s)X6D*b/j9k+y+r5p2S birds in the sky.9^-[2O1h*_7]3j)T8p/y(W4P7t/X/F8v8s8p