Ⅰ.在空格处填入语法形式正确的词。
1．Unless we have enough evidence, we can't win the case.
解析：句意：除非我们有足够的证据，不然我们赢不了这个官司。unless 除非。
2．He is so busy. He cannot afford enough time with his son even if he wants to.
解析：句意：他很忙，他没有足够的时间陪他的儿子，即使他想(花时间跟他儿子在一起)。even if “即使”。
3．One can always manage to do more things, no matter how full one's schedule is in life.
解析：no matter how 引导让步状语从句。句意：一个人总是能设法做更多的事，无论他的生活时间表有多么满。
