这为什么用　having Traffic was snarled during commute times with drivers sometimes having to go around army tanks不是有With作介词吗　　有介词就能　用两动词不是吗

这为什么用　having Traffic was snarled during commute times with drivers sometimes having to go around army tanks不是有With作介词吗　　有介词就能　用两动词不是吗 I went to school without having breakfast.having这句话中,为什么要用having having lunch in ...为什么用having I regretted having been so rude to him,这句为什么用having? Not having got any answer,he was rather worried.这句为什么用having? 英语翻译为什么用having called? 65为什么要用having how about having a cup of milk 为什么用having 关于动名词的用法Why don't you having some fish and eggs?在这句话中为什么用动名词having在什么时候用动名词?what about you having some fish 在这句话中为什么用动名词having 单选(解释一下为什么)A traffic accident happened in the rush hour,______ long delays on the freeway A.caused B.having caused C.causing D.to cause 为什么不能用having caused?The heavy snow lasted for a week,causing a serious traffic confusion in the whole area. Having been in high school for a whole month.请问这句话为什么开头用having been?是什么语法知识? It was such a great fun having attending your birthday party.其中的having attending为什么having要其中的having attending为什么having要用进行时? The Five-Ring Road is to be open to traffic before Nitional Day语法求解to be open to traffic为什么不可以用：to open traffic? _____ several times ,she dicided to leave the bad manA having hurt B having been hurt C hurting D to hurt这道题为什么选B having是什么用法 为什么要用having? I admit having stolen his money.请问这里的having I admit having stolen his money.请问这里的having 为什么要用having stolen? 高中英语语法填空 为什么用having We were delayed by ( ). 1.a heavy traffic 2.heavy traffic 3.some heavy traffic 4.traffic being heavy正确答案选择3.这题我看不懂.为什么选择3呢?