21.
（a） it will be ready at four o'clock today.
（b） it can be picked up at two o'clock tomorrow.来源：考试大
（c） it will be ready in two hours.
（d） only two rolls will be ready on time.
22.
（a） he'll go to the party with the woman.
（b） he met the man at the party.
（c） he has changed his plans.
（d） he has to work late.
23.
（a） pay for some of the food.
（b） insist on choosing their own food.
（c） treat gary to dinner some other time.
（d） thank gary for his generous offer.
24.
（a） she used to work at a newspaper.
（b） she'd like her supervisor's opinion of her work.
（c） she wishes she had a different kind of job.
（d） she meets with her supervisor regularly.
25.
（a） she rearranged the chapters of her book.
（b） she assured himthat the chapter was finished.
（c） she worked on he chapter for quite a while.
（d） she wasn't sure how to end the book.
26.
（a） there's room to stack up the cans of coffee.
（b） the store is out of coffee.
（c） they should buy a lot of coffee.
（d） they should wait for a better deal on coffee.
27.
（a） she works very hard.
（b） she is very strict.
（c） her classes fill up quickly.
（d） it's easy to get good grades in her courses.
28.
（a） the office already mailed the man's birth certificate.
（b） the office no longer issues birth certificates.
（c） the man doesn't have sufficient identification for his request.
（d） the man will have to apply for his birth certificate in writing.
29.
（a） the woman has a choice of early flights.
（b） not many planes go to washington.
（c） the woman should take the earlier flight.
（d） the six o'clock flight is already filled.
30.
（a） she would rather not invite other clubs to join them.
（b） they should prepare extra refreshments.
（c） the members of the club always eat a lot.
（d） there was too much food at a previous meeting.
