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。
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。
上一篇：Trees ________ in winter but in spring.
下一篇：It is I ____ against the plan, because it sounds impossible to carry out.