how many planes there are in the sky?

how many planes there are in the sky? look there are many planes(flying)in the sky.括号里为什么这样填 There are many c ------toy planes in the sky.横线上填啥? how many birds are there in the sky?[有六只] there are many birds in the sky there are many clouds in the sky 改病句： There is cloud in the sky. How many a apples are there? Noboday knows how many stars there are in the sky 这个句子谓语动词用单 There are some planes in the sky,___ ___?She likes swimming I saw many planes in the sky 对(many planes)划线部分提问 there,many,sky,are,stars,in,the.连词成句 How many [ ] are there in the hospital?