【正文】 aving8．Be quiet, please. They _________ a meeting now.A．have B．had C．a(chǎn)re having D．were having9．—Where is your father, David?—He ________ the car in the garden.A．will wash B．washed C．is washing D．was washing10．—Hi, Daming. What are you up to?—I ________ a project about family history.A．do B．did C．a(chǎn)m doing D．was doing11．Betty can’t join us in the card game. She ________ the classroom.A．has cleaned B．was cleaning C．has cleaned D．is cleaning12．—Peter, please be quiet. Your brother ________ on the phone.—No problem.A．records B．recorded C．was recording D．is recording13．You’d better not disturb Kathy now as she ________ her speech for tomorrow’s meeting.A．is preparing B．will prepare C．was preparing D．has prepared14．Ladies and gentlemen, please remain in your seats, fasten your seat belt and bring your seat back. The plane________.A．takes off B．is taking off C．has taken off D．took off15．—Yesterday I received a letter from .—You did? I hear he________for America next year.A．has left B．leaves C．left D．is leaving16．— Hurry up, Mary. The movie has already been on for ten minutes. —Wait a moment. I ________ some snacks in a shop.A．buy B．bought C．a(chǎn)m buying D．have bought17．—I _____to Beijing tomorrow. —Have a good trip!A．flies B．fly C．a(chǎn)m flying D．flew18．—Tom, where39。s dad?—Oh, he ________ the flowers in the garden.A．waters B．is watering C．watered D．has watered19．—Where is Frank?—He _________ to music in his room.A．listens B．is listening C．listened D．was listening20．— What’s that noise, Sam?— My little brother ________ his toy car.A．played B．is playing C．plays D．was playing21．—Ethan, let’s go to play basketball, shall we?—Sorry, I can’t. I ________Yao Ming’s game. Would you mind going later?A．watch B．have watched C．a(chǎn)m watching D．was watching22．The students in our group ________ the final preparation for the match. We are sure to win.A．made B．a(chǎn)re making C．make D．will make23．— Mom, I’m busy making the bed. Can you give me a hand? — Wait a moment. I ________ the floor.A．a(chǎn)m cleaning B．will clean C．was cleaning D．have cleaned24．— Hi, Tom. I can’t find David anywhere. Do you know where he is?—Oh, he ________ for tomorrow’s exam at home.A．prepares B．is preparing C．has prepared D．prepared25．—What is your mother doing, Linda? —She ________ dinner in the kitchen now.A．is cooking B．was cooking C．cooks D．cooking26．—How do you find your pany?—A little worried. We ________ ground as a leader in the field of IT with the others speeding up development.A．a(chǎn)re losing B．were losing C．lost D．have lost27．—I _______ a book report now. Can I talk to you later?—No problem.A．write B．wrote C．a(chǎn)m writing D．was writing28．—Tina, let’s go out for shopping.—Sorry, Amy. I __________ my homework.A．do B．a(chǎn)m doing C．did29．The zoo keeper is worried because the number of visitors ________ smaller and smaller.A．bee B．a(chǎn)re being C．is being D．have bee30．Don’t make any noise, Jim! Your little sister ________ now.A．sleeps B．s