have to do不得不做
have done 曾做過have to do???ò??? have done ???????????have do??have doing???÷?have????+to do, do ,doing??????????????? 1.have to do????????ò???????????? I have to do some laundry this evening.??????ò???·??? 2.have sb. do?????????????????????have to do?????????????ò?????￡???have +do???????????have sb. do????????????????????????????? Mum had me do the housework yeaterday.?????????????????? 3.have sb. doing????????????????????have +doing??have +do?????????????????have +doing?????????????? Mum had me doing the housework yeaterday.?????????????????????????You have noting worry about??????????????????to??ɡ?you have nothing to worry about????????????????(??????????????顣)???????У??????????????????nothing???治???????to?????????ū???????????÷????? have nothing to worry about??????????ο????