用所给动词的适当形式填空thanksalotfortheinvitation.IamsorryIcan't-(visit)nextweek.I-(have)areallybusyweek.onMonday,Ihaveto-(go)tothedoctor's.onTuesday,Iam-(have)apianolesson.onWednesday,Iam-(study)fortheEngli

　　用所给动词的适当形式填空

　　thanksalotfortheinvitation.IamsorryIcan't-(visit)nextweek.I-(have)areallybusyweek.onMonday,Ihaveto-(go)tothedoctor's.onTuesday,Iam-(have)apianolesson.onWednesday,Iam-(study)fortheEnglishtest.onThursday,Ihaveto-(play)soccerwithmyfriends.onFriday,Iam-(help)mymother.onSunday,Ihaveto-(babysit)mybrotherand-(do)myhomework.please-(call)meafterthevacation