Grammar and usageOverview of tenses 1present tenses2nd period Describe what you’ve watched, using present tenses. Check the answers(p9 A):• I_____ tired, but happy today. I ______________ my play since January, and now I __________ for actors to perform in it. It ___ exciting to think of them saying the words I ________________ for months. I have already found one enthusiastic actor who ____super.amhave been writingam lookingishave been imaginingis • He __________ a film right now, but ________________ to be in a play for many years.• I _____________several advertisements for my play. We ___________them next week. Tickets ___________ on sale next week. Writing ______ tough work, but I _____ it will all be worthwhile, and I will be famous when the play ______.is making has been planning have designed are printingare going ishope opens Check the answers(p9 B):• I am performing at the Comedy Club tonight.• I have been practising my jokes in front of the mirror for the last three hours.• My family is coming to watch my show.• I am nervous about the show. Check the answers(p102C1):• 1. plays; has not had• 2. leave• 3. are making• 4. Have see• 5. are saving• 6. don’t need• 7. have taken• 8. has been developing Check the answers(p102C2):• The environment in the north of China has improved greatly since the government took measures to plant more trees. Beijing has not been experiencing as many sandstorms as it used to. There have been three sandstorms in Beijing since the beginning of this year. This is good considering that Beijing experienced more than a dozen sandstorms a year during the 1990s. • The Chinese government and the Chinese people are paying more attention to the...