问题
选择题
I think Tom, as the head of a big department, should either study regularly or ____his job.
A.quits
B.to quit
C.quitting
D.quit
答案
答案:D
考察固定用法.either…or…要么…要么…,这是一个表示选择关系的短语。本题是放在情态动词后面,所以都使用动词原形。故D正确。