问题
选择题
—Please _______to return my book by Friday. I'll use it on Saturday.
—No, problem. I'll finish reading it on Thursday.
A．don't forget
B．not to forget
C．not forget
D．forget not to
答案
答案：A
祈使句的用法。由题意可知，这是一个否定的祈使句，故用“don't+动词原形”。