Ⅰ. 用所给词的适当形式填空
1. (2019·全国卷Ⅰ)Some positions require students to be 15 to 24 or up to 29 for persons with a disability(ability).
2. I cannot control my body well. My legs become painful(pain).
3. They failed to reach a settlement(settle), because they disagreed (agree) too much with each other.
4. I couldn’t agree more. It is meaningful(mean). Not only can it broaden(broad) our multicultural (cultural)knowledge and enrich (rich) our lives, it can also enable(able) us to develop unlimited(limited) love and friendship (friend) with others from various social backgrounds.