4、tfrom__________(go)swimmingoccasionally,Idon'tgetmuchexercise.[答案] going2.Ona_______(freeze)morningthelittlematchgirlwasfound_______(freeze)atthecornerofthestreet.[答案] freezing;frozen3.Hemangagedtomakehimself___(understand)withhis______(speak)English.[答案] un
6、r2.Myfatherlikesplayinggolf;he'sreallyenthusiastic________it.[答案] about3.Itismyhabittorideabiketowork,butIstilltakeabus________times.[答案] at4.Tombasedhistheory________whathewasdoingandgotthepresentresult.[答案] on5.Asweallknow,drugabuseis________thelaw.[答案] ag