问题补充:
Tom isn’t to go to school .
A. old enough
B. enough old
C. young enough
D. enough young
答案:
(答案→)A. old enough
B. enough old
C. young enough
D. enough young
解析:句意:Tom年龄不足够去上学。enough的用法如下:①enough可以作名词、代词,意思是足够;充分。作代词可以代替可数名词或不可数名词,在句中作主语或宾语。如:Enoughhasbeensaidonthissubject.关于这一问题说得已经足够多的了。②enough作形容词,意思是足够的;充分的,常与for或不定式连用,可以作定语或表语。作定语置于被修饰的名词前后均可,前置时强调enough,后置时强调被修饰词。如:Fivemenwillbequiteenough.五个人就足够了。 ③enough作副词的意思是十分地;充分地;足够地;充足地,置于被修饰的形容词或副词之后,常与不定式或介词for连用,在句子中作状语,表示程度。如:The problems are easy enough for me to solve.那些问题足够容易,我能回答。