A.in which | B.from which | C.with which | D.on which |
A.who | B.which | C.that | D.this |
A.how; what; how | B.how; it; how | C.why; it; why | D.that; what; that |
A.when | B.where | C.how | D.that |
A.where | B.which | C.where | D.why |
A.while devoting | B.while devoted | C.while he was devoted | D.while devoting himself. |
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