动词 have+宾语+ (不带 to) do 或+doing都很常见.have+ 在这里是cause (somebody) to (do something)的意思。  例如：
       I had John find me a house.
       I had them all laughing at my jokes.
   have用在否定句时有“允许” 、 “容忍” 的意思。 例如：
       We can't have you going everywhere by taxi./She won't have boys arriving late.      在你问及繁荣句子里填doing  看来并没有错。事实上Geoffery Leech在(An A～Z of English Grammer & Usage)一书中，在举出下例后注明<especially U.S.>:You really ought to have the doctor take a look at that eye