51. _____ it or not, his discovery has shocked everyone in scientific circles.
A. Believe B. To believe C. Believing D. Believed
52. To tell you the truth, I’d rather read than watch television; the programs seem _____ all the time.
A. to get worse B. to be getting worse
C. to have got worse D. getting worse
53. After the Arab states won independence, great em phasis was laid on education, with girls as well as boys _____ to go to school.
A. to be encouraged B. encouraging C. encouraged D. be encouraged
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