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61.The computer of this kind can work ______ than the one of that kind.
A. hundred of times faster B. a hundred time faster C. hundred times faster D. hundreds of times faster
62.When I was young, my grandmother told me that the earth ______ round.
A. is B. was C. has been D. had been
63.—Do you know Jack well?
—Certainly. We ______ friends since ten years ago.
A. were B. have made C. have become D. have been
64.These hamburgers ______ nice, so they have all ______ out.
A. taste, sell B. are tasted, sell C. taste, been sold D. are tasted, been sold
65.We now have ______ fast ways of traveling that this big ocean seems to have grown smaller.
A. so B. such C. so a D. such a
66.I do not wish to ______ your sincerity.
A. reflect B. reflect on C. reflect in D. reflect about
67.The smog is due ______ invisible gases, mostly from automobile exhaust.
A. from B. to C. for D. with
68.______ is accepted as true is relatively, and not absolutely, true.
A. It B. That C. What D. That it
69.How can you keep the machine ______ when you‘re away?
A. run B. to run C. running D. being run
70.Because of his degree, he refused to do ______ he thought “low” work.
A. that B. what C. which D. who
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