填空。 How many c __ 1 __ do you know? Please guess what colors they are. Trees are g __ 2 __ . Some of the apples are r __ 3 __ . The sky is b __ 4 __ . Oranges are o __ 5 __ .Some flowers are y__ 6 __ ,some are p __ 7 __ and some are w __ 8 __ . A blackboard is b __ 9 __. I don't like all these colors. I like light blue, but my father likes b __ 10 __. He is often in a brown shirt.