Our headteacher is very strict_____us and he is also very strict ____his work .
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.