3、in.A.tohavestudiedB.tostudyC.tobestudyingD.tohavebeenstudying7.ItissaidthatinAustraliathereismorelandthanthegovernmentknows_______.A.itwhattodowithB.whattodoitwithC.whattodowithitD.todowhatwithit8.Anyone_______bags,boxes, or whatever,wasstoppedbythepolice.A.seencarryB.seencarryingC.sawtocarryD.s