Look at the kites __(fly) in the sky.为什么要用ing形式啊

Look at the kites __(fly) in the sky.为什么要用ing形式啊 Look at the (c ) kites in the sky.How beautiful! look,the birds can -----(fly)in the sky.动词形式 __ birds can fly in the sky. look,superdog ----------- ( fly ) in the sky Look!These butterflies______(fly)in the sky Look at the picture.The children --------(fly)kites. The children hope () (fly kites) in the park at weekends fly in the sky Look at the blue sky in the there_____many kites in the sky. Look,The bird can fly so in the sky