A.in which | B.when | C.what | D.where |
A.what | B.which | C.who | D.that |
A.because | B.because of | C.ever since | D.as a result of |
A.for example | B.as | C.so that | D.such as |
A.such; that | B.so; as | C.so; that | D.such; as |
A.before; when | B.when; since | C.since; while | D.since; before |
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