—Never give up! I am sure you will succeed.
—But I don't know ________.
A.how can I improve my English B.what should I do first
C.how I can improve my English D.what I can deal with my English
—Eighty dollars for such a T-shirt! You ________ be joking!
—I'm serious. It's made of silk from Suzhou.
A.must B.can C.will D.may
—Oh! What a mess it is in your room!
—Sorry. I'll________ my things and tidy it right now.
A.put down B.put away C.put up D.put off
Seeing the great changes in his hometown, he could ________ believe his eyes.
A.nearly B.exactly C.probably D.hardly
—I'm going to invite Helen to our home for dinner tomorrow, if you don't ________.
—Certainly not. Go ahead.
A.care B.agree C.mind D.want
—More and more people like shopping online now.
—I agree. My sister will be crazy about it ________ my parents give her enough money.
A.if B.unless C.when D.while