A.why | B.which | C.where | D.what |
A.which | B.what | C.it | D.who |
A.was until; when | B.was until; that | C.wasn’t until; when | D.wasn’t until; that |
A.that; which | B.which; which | C.that; that | D.which; that |
A.that | B.if | C.that if | D.if that |
A.what; that | B.that; what | C.不填; that | D.that; 不填 |
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