A.what; where | B.where; where | C.what; which | D.where; which |
A.why | B.that | C.how | D.what |
A.or | B.and | C.so | D.but |
A.what | B.which | C.as | D.that |
A.unless | B.as | C.even though | D.in case |
A.of which | B.when | C.of whose | D.Which |
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