You must get there within half

get within half a mile of Dover It____(take)you half an hour_____(get) there by bus you,make,get,before,o'clock,sure,that,must,there,ten（连词成句） you make get before o'clock sure that must there ten(连词成句) you must be there on time.此句中为什么要用be ,get不行吗? We must get there ().You kmow coming later is bad manners.A: it took us half an hour to get there ----- were you there ?---Half a month. you must be home at half past ten. 求教you must go home at half past six You must click this to get How will you get there?