81. In fact he had done ______ he could do to help the poor.
A. what B. which
C. as D. all which
82. The grass ______ many animals live is abundant here.
A. by which B. with which
C. on which D. of which
83. Would the news ______ he failed to pass the exam bother you?
A. which B. that
C. of which D. on which
84. History is a record of mankind; different historians _______, interpret it differently.
A. therefore B. on the contrary
C. however D. consequently
85. It was not until it got dark _______ working.
A. that they stopped B. when they stopped
C. did they stop D. that they didn’t stop
答案:81-85 ACBCA
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