Be sure not ________ that again.
A. to do B. doing C. did D. Does
【答案】A
【解析】句意：保证不再做那样的事。be sure not to do sth保证不做某事，故为to do。故选A。
题目：Be sure not ________ that again.
关键字：
Be sure not ________ that again.
A. to do B. doing C. did D. Does
【答案】A
【解析】句意：保证不再做那样的事。be sure not to do sth保证不做某事，故为to do。故选A。