相關ahard的文學知識

問題詳情：Most people have ahard time studyingeffectively(有效地)．__16__Thefollowingaresometipsonhowtostudyeffectively.Considertheplaceandthetime.Whenyouwishtostudyeffectively，considertheplaceandthet...

問題詳情： Ahard-workingman_____becomeagreatscientist,butagreatscientist_____beahard-workingman.  A.can’t,can         B.maynot,can     ’t,must    D.maynot,must【回答】D知識點：情態...