A.what | B.when | C.that | D.where |
A.how | B.what | C.which | D.that |
A.what | B.which | C.that | D.while |
A.that | B.in which | C.on which | D.to which |
A.it | B.that | C.which | D.this |
A.That; that | B.What; which | C.What; that | D.That; which |
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