70 A except

　　71 C original

　　72 D distribute

　　73 B length

　　74 A plus

　　75 C distinguish

　　76 B but

　　77 A identical

　　78 C popularity

　　79 D Upon

　　80 B renewed

　　81 A long

　　82 He designed the first suspension bridge, which combined beauty and function perfectly.

　　83 It was very dark, but Mary seemed to know which way to take by instinct.

　　84 I don't think it advisable that parents deprive children of their freedom to spend their spare time as they wish.

　　85 Older adults who have a high level of daily activities have more energy and a lower death rate compared with those who don't.

　　86 Your resume should attract a would-be boss's attention by demonstrating why would be the best candidate.