【正文】 nk Mary has made a wrong ________?—No, I don’t think so. It’s good for her to live alone.A．experience B．experiment C．difference D．decision14．—We have entered a world where robot operations bee true with 5G technology.—Hard to believe! Scientists are full of ________ which leads to great changes in our life.A．instruction B．instrument C．invention D．introduction15．As a student, getting up early and being afraid of missing the first school bell may be mon ________ for you. But thanks to new rules, you can stay in bed longer than before.A．signs B．symbols C．experiences D．expressions16．Yuan Longping is considered to have made a great _________ to the development of agriculture.A．progress B．invention C．introduction D．contribution17．The ____of antibiotics(抗生素) in the 20th century has made a great difference to us.A．invention B．instruction C．method D．discovery18．— Did Lucy dress herself beautifully at her birthday party?— Yeah, of course. Her white dress caught everyone’s ______.A．celebration B．organization C．introduction D．a(chǎn)ttention19．—Could you take out the rubbish and do the dishes，Tony？—Sure，Mom will be mad if she sees this _________，I think．A．matter B．messC．trouble D．difficulty20．—Do you know the boy saving his neighbour from a fire last week?—Sure! I really admire him for his ________.A．gift B．friendship C．courage D．a(chǎn)bility21．Uygur (維吾爾族) dance has a strong ________ of rhythm, sometimes fast while sometimes slow.A．sense B．service C．spirit D．secret22．— Do you really think you can learn that much in only a couple of hours?— Yes. We will try a very useful ________ of dealing with memory problems.A．report B．process C．method D．a(chǎn)ctivity23．—I really admire these scientists in different fields in our country.—I agree. They have made a great ________ to our country, even to the world.A．celebration B．conversation C．contribution D．introduction24．With the development of the service industry, the working ________ is increasing and more jobs should be offered.A．invention B．pronunciation C．introduction D．population25．—I have great ________ in learning Chemistry and I am so worried. Could you help me?—Sure. I would be glad to.A．interest B．trouble C．fun D．joy26．I was attracted by the lady’s warm smile. It was really like a hidden ________ .A．pleasure B．treasure C．a(chǎn)ttention D．invention27．— Can you describe what Mr. Green’s daughter is like?— Oh, she has the very ______ of Mr. Green. I’m sure you can know her at the first sight.A．photo B．voice C．look D．taste28．My sister has no sense of ________. She always gets lost in the city streets.A．shame B．duty C．direction D．humour29．Mr. Zhang is an excellent Chinese teacher. He has over 20 y