[ 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

Random Topics:
Quantifiers: too many, too much & enoughGrammar & ReadingObject PronounsVocabulary Spelling GrammarSynonym and AntonymPast PerfectAdverb of MannerVerbs + Gerund or InfinitivePerfect ModalsComplex PrepositionsOther quiz:
Tenses › ViewThey _____ playing tennis now.
A. is
B. are
C. am
D. be
Mixed General Quiz › View
The ___ rose at 5:15 today.
a. son
b. sun
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
