A.tall | B.taller | C.tallest | D.the tallest |
A.most | B.little | C.less | D.fewer |
A.worst | B.the worse | C.the worst | D.worse |
A.this | B.that | C.such | D.as |
A.difficult as | B.as difficult | C.more difficult | D.difficult |
A.older six years | B.six years older | C.six years elder | D.older by six year |
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