5) We refuse that there are insufficient funds in the great vaults(银行保管库)of this nation.
[A] to believe [B] to be belived
[C] beliving [D] have belived
6) The green turtle has been known over 2,000 miles to return to a nesting site.
[A] in the navigating [B] the navigation [C] to navigate [D] navigation
7) For the [A] first time Venusian scientists managed landing [B] a satellite on the planet Earth, and it has been sending [C] back signals as well as [D] photographs ever since.
8) The day is past when Chinese universities and colleges to give high school diplomas to all who sit through four years of instruction, regardless of whether any visible results can be discerned.
[A] afforded [B] affording
[C] to afford [D] can afford
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