1 . She ____________ (be) faithful to her promise to guard this secret to this day. (所给词的适当形式填空)

2 . I have some difficulty ___________(carry) out the plan. This is why I turn to you for assistance. (所给词的适当形式填空)

3 . The reason __________ he was absent was quite complicated. (用适当的词填空)

4 . I learned this while ________ (take) care of a seagull unfortunate enough to swallow a hook. (所给词的适当形式填空)

5 . Study co-author Wei-Min Wu says that in 24 hours, the plastic ________ (turn) into carbon dioxide. (所给词的适当形式填空)

6 . To engage myself in the local industrial atmosphere, I chose a hotel in the “industrial park”, ________ the coexistence of advanced manufacturing and natural beauty was most evident, as it was situated on the edge of a scenic lake, embraced by a vibrant landscape.

7 . A school-home is exactly ________ it sounds like. We get the homeless off the street, and we educate them so they don’t have to return to the street. We teach them how to be gardeners, painters, carpenters, bricklayers, electricians, and air-conditioning repairmen. (用适当的词填空)

8 . She was much younger than the other members in the conservation and research team at the Mogao Caves, ________leader was her father Chang Shuhong (1904-1994), a noted painter and director of the Dunhuang Academy. (用适当的词填空)

9 . The 2022 Winter Olympic Games in Beijing can be seen as a good example of________ young people have embraced China Chic. (用适当的词填空)

10 . Although we do not know very much about________ kind of life forms exist in deep ocean trenches(深海沟), marine scientists have found a certain type of jellyfish(水母) in the Mariana Trench, the world’s deepest ocean area. (用适当的词填空)