________youtoldthem
Ai
which
Bi
that
Callthat
Di
everythi
g
48Theastro
autdidma
yexperime
tsi
thespaceship__________much
helpfork
owi
gspace
Awhichwethi
kitis
Bwhichwethi
kare
of
Cofwhichwethi
kis
DIthi
kwhichisof
49Thegreatdaywelookedforwardto__________atlast。
Acome
Bcame
Ccomi
g
D
comes
50Iliketheseco
dfootballmatch__________washeldlastweek
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that
Awhich
Bwho
C
D
参考答案：15AADBA610ABCCA1115AADAD1620CDDBC2125ACBDC2630AADAD3135CABCB3640BBDBA4145BDBBC4650CDBBC
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