英语中共有______ 个字母,其中______个元音字母。
You ________ drive your car so fast. It’s dangerous.
– What’s the matter?-- I have a ________ . I have to go to the doctor.
My little brother is so careless. He cut ________ with a knife.
My knee( 膝盖) is hurt, my mother put some medicine _______ it.
I ________ let him know it as soon as he ________ back.