-- The math problem _________ is not difficult. --- But after several tries , I have to give up _________ on it .
She told me the earth ____ around the sun.
When you move somewhere new, the first thing for you is to find a place______.
I don’ t mind _____the door.
—Shall we call a taxi? —Ok, Let me ______ the phone number for you.
If you _____ your study_____ your interest, you will like it.