Evidencehasbeenfoundthroughyearsofstudy______children’searlysleepingproblemlikelytocontinuewhentheygrowup.
A. why
B. how
C. whether
D. that
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Thelimitsofaperson’sintelligence,generallyspeaking,arefixedatbirth,but_____hereachestheselimitswilldependonhisenvironment.
A. where
B. whether
C. that
D. why
Itisbynomeansclear_____thepresidentcandotoendthestrike.【2012全国新课程】
A. how
B. which
C. that
D. what
Itdoesn’tmatter________youpaybycashorcreditcardinthisstore.
A. how
B. whether
C. what
D. why
Wepromise_____attendsthepartyachancetohaveaphototakenwiththemoviestar.
A. who
B. whom
C. whoever
D. whomever