. Mary spends a lot of money on clothes _______ her family is not rich.
A. because B. though C. if D. so
—Shall we go out for a walk?
—Sorry, I can’t. I _______ my homework.
A. do B. did C. am doing D. was doing
I’m sorry, I didn’t _______ you clearly. Would you say it again?
A. hear B. notice C. see D. watch
I ________ ride a bike to school. But this morning I took a taxi because I got up late.
A. never B. sometimes C. seldom D. usually
Which is the _______ way to Qingdao, by plane, bus or train?
A. good B. well C. better D. best
—May I have a look at _______ book tonight?
—Of course, you can. I have ________ old one at home.
A. the; a B. a; the C. the; an D. the; the
