Home shopping television networks have became a away fodr many people to shop without ever_______(have) to leave their homes.为什么要填having

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Homeshoppingtelevisionnetworkshavebecameaawayfodrmanypeopletoshopwithoutever_______(have)toleavethei

Home shopping television networks have became a away fodr many people to shop without ever_______(have) to leave their homes.为什么要填having
Home shopping television networks have became a away fodr many people to shop without ever_______(have) to leave their homes.
为什么要填having

Home shopping television networks have became a away fodr many people to shop without ever_______(have) to leave their homes.为什么要填having
因为前面是介词without,所以后面的动词要用名词形式,也就是ing形式.

without 后面的动词要加 ing

介宾

前面有without
后面应该是名词,动名词短语,to do
原态是have 即动词 因此变形为动名词 having

without + Ving