Tomhadagoodtimelastweekend.
否定句:Tomdidn'thaveagoodtimelastweekend.
疑问句:DidTomhaveagoodtimelastweekend?
肯定回答:Yes,hedid.
否定回答:No,hedidn't.
Weoftenplayedcomputergameslastyear.
否定句:Wedidn'toftenplaycomputergameslastyear.
疑问句:Didyouoftenplaycomputergameslastyear?
肯定回答:Yes,wedid.
否定回答:No,wedidn't.