初二英语问题,并说出为什么这样做（原因）
用所给动词的适当形式填空例如：let him 《come》（come） into the classroom.原因：let为使役动词,后跟动词原形1.we must -------（hand） in our homework intime.单项选择1.Mary wants to （ ）the bag,it's too heavy A.take B.bring C.give D.carry2.Why （ ） go hiking with us tomorrow?that must befun. A.do youB.not C.not toD.to3.Don‘tyou have a computer?（ ） A.no,i do B.yes,i don'tC.no,i don'tD.yes,it doesn't4.Are you free tomorrow?（ ）A.i'd have to.B.i think so.C.OKD.yes,i do.5.It about two () meters () hishome.A.,hundreds of,forB.hundreds of,fromC.hundred,fromD.hundred of,from