Mr. Zhang _______ ride to work, but now he walks to work.A. is used to B. used to C. uses to
He _______ this book for four years. He _______ it in 2011.
Sorry, I _______ to help you at nine. I was busy at that time.
His sister _______ from home for a long time.
To improve his riding skills, he spends _______ an hour a day practicing riding.
Jim said he _______ dinner. He was quite full.