[ To Infinitive or Bare Infinitive ]
However, he didn’t find anything unusual enough ………. why she could remember so much about her life
A. to explain
B. explaining
C. explains
D. explain

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Quantifiers: too many, too much & enoughGrammar & ReadingObject PronounsVocabulary Spelling GrammarSynonym and AntonymPast PerfectAdverb of MannerVerbs + Gerund or InfinitivePerfect ModalsComplex PrepositionsOther quiz:
Grammar › ViewI often think _____ the day we met.
A. off
B. on
C. about
D. for
Grammar › View
Never _____ the weather been so bad this late in the season.
A. has
B. have
The firefighter rescues people from burning buildings and helps put out fires.
A. True
B. False
Gerund & Participle › View
_____ in almost every Vietnamese family’s meal, rice is the most common food in Vietnam.
A. Found
B. Finding
C. To find
D. Having found