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[來(lái)源 :Z167。 ] C. Being surprised D. To be surprising 8. With the difficulties _______, I felt a great weight _______ my mind. A. settling; taking off B. settled; taking off C. settled; taken off D. settling; taken off 9. The old man _______ scientific research and had little time to stay with his family. A. is bent on B. is bended on C. is bent for D. is bent in[來(lái)源 :學(xué) *科 *網(wǎng) Z*X*X*K] 10. I’m sorry you’ve been waiting so long, but it’ll still be some time _______ Brian gets back. A. before B. since C. till D. after 1 1. It is the prevention of disease _______ the successful treatment that has led the rapid increase of the world’s population. A. less than B.