A.when | B.while | C.what time | D.and |
A.as hardly as | B.so hardly as | C.so hard as | D.so hard so |
A.more difficult | B.the most difficult | C.less difficult | D.theleast difficult |
A.happy; happily | B.happily; happy |
C.happy; happy | D.happily; happily |
A.yet, yet | B.already, already | C.already, yet | D.yet, already |
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