What about having a glass of milk 为什么要用having

What about having a drink? What about having a pizza What about having a rest?( 同义句) What about having a picnic with old McDonald? What about having a picnic tomorrow?中的谓语动词是什么? What about having a party?(同义句替换） picnic,about,Saturday,what,next,a,having,连词成句 What about having a glass of apple juice?What about having a glass of apple juice?变同义句 What about having a glass of milk 为什么要用having What about having a glass of milk 为什么要用having What about having a picnic with Mr.Cooper?在句子中having What about having a picnic改成同义句（）（）like（）have a picnic；（）（）having a picnic what about having some cakes?什么意思？ what about having some water?怎么回答 what about having a picnic?=（）（）have a picnic? What about ( ) a picnic?A.have B.to have C.having D.had 寻帮助,写同义句.What about having a picnic?(_)(_) have a picnic? 写同义句.What about having a picnic?(_) (_) have a picnic?