________ nice flowers ! Where did you buy them?
up late at night is bad for our health. A Stays B .Stay C. Staying
—Must we keep the window open all the time? A. No, you mustn’t B. No, you can’t. C. No, you don’t have to.
You’d better _______ too much meat. You are much too fat. A. not eat B .eat C. not to eat
---This bag is too heavy for me. Could you please do me _____ favor? -----Sure . A. the B. an C. a
—____—They’re English books.