A.both their children | B.both of whom children |
C.both of whose children | D.whose their children |
A.what | B.where | C.how | D.which |
A.so | B.if | C.since | D.although |
A.whether | B.when | C.what | D.that |
A.what | B.that | C.how | D.where |
A.which | B.where | C.to which | D.for which |
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