用所给单词的适当形式填空
1.—We'll go to the party to be held in Qinghai Grand Theater at 8 tonight.Could you join us?
—I'm afraid I can't.I ________(discuss) the holiday plan with my friends.
2.—Car prices have been going down sharply in the last 20 years.
—It's not surprising because the law of market ________(control) the price of a product.
3.—Look，I've got admission to Harvard University for a shortterm study next semester.
—How fantastic! You________(experience) a different university life then.
4.Today many physical bookstores________(close) down with financial difficulties，inflexible management strategies and competitive pressure from online bookstores.
5.In general，most tennis________(play) on hard courts or on clay.
6.It's said that they________(enjoy) a better life ever since they moved to the US.
7.—Look! Someone________(sweep) the floor.
—Well，it wasn't me.I went shopping just now.
8.—David，are you listening to me?
—Sorry，Dad.I________(try) to make sense of what the reporter said.
9.If this product does not give you complete satisfaction，please return it to the manufacturer，stating when it________(purchase).
10.The vegetables in his field________ (sell) well，because they are pollutionfree.
11.If we don't hurry up，everything________(eat) by the time we get to the party.
12.—The girl got the championship in the English contest.
—She fully deserves the title.She________ (prepare) for it for years.
13.The writer________(work) on her new novel，which is supposed to come out next month.
14.—Do you love teaching，Miss He?
—I fell in love with teaching in 2002.I________ (teach) for twelve years by this Autumn.
15.—What happened? I called you several times yesterday evening，but I couldn't get through.
—Sorry，my sister and I________ (talk) on the phone all the time.
16.—Sorry，I didn't catch you.
—Be quiet，please;the baby________(sleep).
17.—What's up? You didn't pick up the phone just now.
—I'm sorry that I________(practise) dancing with music on，but it's done now.
18.—Alas! I have left my key to the office in my car.
—Don't worry.I________(get) it for you.Wait a minute.
19.—Why don't we choose that road to save time?
—The bridge to it________(repair).
20.I am leaving for Beijing next Saturday.Do you know when the earliest plane________(take off) on Saturday?
答案 1.will be discussing 2.controls 3.will be experiencing 4.are closing 5.is played 6.have been enjoying7.has swept 8.was trying 9.is purchased 10.sell 11.will have been eaten 12.had been preparing 13.has been working 14.will have been teaching 15.were talking 16.is sleeping 17.was practising 18.will get 19.is being repaired 20.takes off
