1.Results from the research suggest that increasing seeding rates can ______ weed growth and reduce crop yield losses from weed competition.A.suppressB.oppressC.impressD.depress2.She works in a fitness center ______ people on the use of the sports equipment and scientific physical training.A.destructingB.constructingC.instructingD.obstructing3.The study indicates that students with either high ______ or expectations have higher school achievement than those with low ______ and expectations.A.inspirations; inspirationsB.respiration; respirationC.expiration; expirationD.aspirations; aspirations4.Chronic ______ stress, such as depression and anxiety, can bring about the negative influence on immune and nervous system.A.medicalB.physicalC.psychologicalD.periodical5.The memo is to remind you that the meeting you set with Mr. Green has been ______ to next Monday.A.put awayB.put offC.put downD.put up