pp-1-72 pp-1-83 pp-1-113 请大家指教几道语法题目

sky1126688

1the brightly pp-1-72 that  perches untill it sights a fish , then dives into the water to catch its prey.

我觉得是c 但是答案是b 为什么， b要怎么改？

2 of 120 minerals known to have been used as gemstones ,only about 25 are in common use in today jewelry.

不知道选那个？答案是d  为什么？

3 in the unisted states , the first roads were paved in colonial times, first with logs , latest with cobblestones or bricks ,depending   on the region .

我觉得是c ， 但是答案是b ， 我觉得latest 和first 对应， 哪里有错？

marshial

1, 去掉that

2. 应是in today's jewelry

2. latest>>>>later