Hereturnedhomesafeandsoundafterafiercebattle,________wasunexpected.
A.whichB.asC.thatD.it
________weisknowntoall,Englishisnotverydifficulttolearn.
A.whatB.asC.thatD.which
Theoldmanhadthreesons,allof________diedduringWorldWarII.
A.whoseB.thatC.whomD.who
Ihaveboughttwopens,_______writewell.
A.noneofwhichB.neitherofwhichC.bothofwhich
D.allofwhich
Doyouknowthereason________shehaschangedhermind?
A.whyB.whichC.forthatD.ofwhich
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