A.what | B.that | C.that what | D.what that |
A.if, whether | B.whether, if | C.whether, whether | D.if, whether |
A.for | B.since | C.so that | D.even if |
A.Which | B.As | C.It | D.What |
A.where | B.that | C.what | D.as |
A.When | B.While | C.As | D.If |
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