A.where | B.which | C.in which | D.that |
A.since | B.when | C.unless | D.until |
A.before long | B.long before | C.before soon | D.soon before |
A.why | B.how | C.because | D.when |
A.which | B.whom | C.that | D.them |
A.What; because | B.That; because | C.Why; that | D.What; why |
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