问题补充:
The little boy was so careless with his spelling that he oftenletters from words.
A. left off
B. left behind
C. left out
D. let alone
答案:
A. left off
B. left behind
(答案→)C. left out
D. let alone
解析:考查短语辨析。leave off停止,结束,leave behind 遗留,leave out 遗漏,漏掉,leave alone 不理会。根据句意小男孩经常从单词中漏掉一些字母。故选C。