几道关于非谓语动词的高中英语选择题,请说明为什么,
Robertissaid_____abroad,butIdon’tknowwhatcountryhestudiedin.
A.tohavestudied B.tostudy C.tobestudying D.tohavebeenstudying
I’veworkedwithchildrenbefore,soIknowwhat______inmynewjob.
A.expected B.toexpect C.tobeexpecting D.expects
ItissaidinAustraliathereismorelandthanthegovernmentknows______.
A.itwhattodowith B.whattodoitwith C.whattodowithit D.todowhatwithit
Themanwefollowedsuddenlystoppedandlookedasif_______whetherhewasgoingintherightdirection.
A.seeing B.havingseen C.tohaveseen D.tosee
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