How many... are there — 英语填空题

小丽有三个盒子。红盒子里有5支钢笔，蓝盒子里有4支钢笔，…

文具盒里有6支铅笔，书桌上有3支铅笔，书包里没有铅笔。小…

桌上有六支蜡笔，想询问蜡笔的数量，应该说：A. How many crayo…

看教室里的物品：There are nine books on the desk and one book in the bag…

A class has three bags. There are 2 balls in the red bag, 4 balls in the blue ba…

看见一篮苹果，想询问苹果的数量，应该说：A. How many apples a…