A.which, that | B./, when |
C.which, when | D.that, where |
A.that ... improving | B.which...to be improved |
C.where ...improving | D.when...improving |
A.suffering for | B.who is suffering | C.who suffer from | D.who suffer to |
A.of whom | B.who | C.about whom | D.whom |
A.when | B.where | C.which | D.that |
A.what; because | B.for; that | C.why; that | D.when; because |
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