landmark(里程碑)inthehistoryofsciencewasmadebyaphoto_______wastakenonApril10thabouttheblackholeinafarawaygalaxy(星系).
A. who
B. which
C. what
D. when
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Alltheclassmatesenjoyedthecake_________Imadeattheparty.Itwasreallydeliciou
A. that
B. who
C. what
-DoyouliketheweeklytalkshowTheReadersonCCTV?-Sure.It’sagreatTVprogram____candevelopthehabitofreading.
A. who
B. that
C. what
D. whose
Chinaisgettingbetteratmakinghi-techproducts_________canbeboughtinallpartsoftheworld.
A. who
B. which
C. What
-Frank,look!Whoarethechildrenunderthetree______waitinginaline?-TheyarethestudentsfromtheNo.1PrimarySchool.
A. thatare
B. whereare
C. whichare
D. whois