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【华慧考博】考博英语每日一练（12.29）考博加油！
1. As long as nations cannot themselves accumulate enough power to dominate all others, they must depend on ______.
A. allies
B. self-determination
C. education
D. resources
2. Even if the genes themselves are not initially hazardous, you do not know how they are going to evolve.(划线词：initially）
A. partially
B. originally
C. ultimately
D. fundamentally
【考博英语补全句子】
1. On Halloween children ________ masks ________ houses and ________ tricks ________ others.（在万圣节戴着面具的孩子们串门并捉弄别人。）
2. Everyone should _________ _________ _________（做贡献）to protecting the environment.
句意：每个人都应当为保护环境做贡献。
