[ Vocabulary ]
Scientists think that wild animals must ____________ in their natural habitats.
A. keep
B. to keep
C. be keeping
D. be kept
Select your answer:
Random Topics:
Present and Past TensesPossessive Adjective and PronounNouns, Pronouns, Antecedents, and Singular and PluralIrregular Plural NounsPrepositionRelative Clauses Pronounsduring, for, whileDemonstrative PronounNoun Verb AgreementOther quiz:
Tenses › ViewProvide an example of the past continous tense.
A. She finishes her homework before dinner.
B. She had been finishing her homework before dinner.
C. She will finish her homework before dinner.
D. She was finishing her homework before dinner.
Mixed General Quiz › View
Cathy was the ___ survivor of the plane crash.
a. sole
b. soul