He asked Americans to wear a mask for the first 100 days, promised to reopen schools and deliver on vaccines.

At least 100 million covet vaccine shots into the arms of the American people in the first hundred days.

A hundred million shots in the first hundred days. 

上面“At least 100 million covet vaccine shots into the arms of the American people in the first hundred days.

A hundred million shots in the first hundred days. ”是拜登原话，

请教老师：

1) He asked Americans to wear a mask 还是应该 He asked Americans to wear masks ? 还是二者（单复数）皆可？

就类似于老师要求同学们举手（这里hand还是hands？）， 老师要求同学们拿出语文书（这里book还是books？）

2) 拜登的原话中，covet是否应该是 coveted ? 是记录所误吧？ 这里用covet讲不通。