— Could I clean the bedroom for you?
— No, thanks. I it myself.
| A．cleaned | B．have cleaned | C．was cleaning | D．had cleaned |
One of the best ways for people to keep healthy is to _____ good eating habits.
| A．grow | B．develop | C．increase | D．find |
—The price of food, drinks, clothes _____ so quickly these years.
—Oh, no, but I don’t think so.
| A．develops | B．raises |
| C．improves | D．increases |
Just be _______, you can’t make such great progress in a day. It takes time.
| A．polite | B．humorous |
| C．patient | D．unbelievable |
—I am afraid to ask questions because of my poor ______.
—You’d better practice speaking more.
| A．introduction | B．expression |
| C．pronunciation | D．information |
He didn’t wake up ________ he heard the noise.
| A．until | B．while | C．before | D．when |