[ Modals ]
Choose the best modal to complete this sentence:
Tarsiers are endangered species. Environmentalists tell us that we ____ protect them.
A. must
B. have to
C. need to
D. should

Random Topics:
Indefinite and Definite ArticlesPresent Perfect and Past SimpleUse of Prepositions or ConjunctionsTenses: Present simple, Past Simple, Future SimpleAdverb of MannerFinite and Non-Finite VerbThe First Conditional SentenceFuture Perfect vs Future ContinuousSimple, Compound, Complex SentencesComparison Degree & GerundsOther quiz:
Grammar and Vocabulary › ViewI need to call Erika. What’s ________ phone number?
A. her
B. hers
C. she’s
Conjunctions › View
We need to get bread, milk _____ apples from the store.
A. or
B. and
C. so
D. but
Vocabulary › ViewThe first step
A. initiative
B. curious
C. proactive
D. annotate
Mixed General Quiz › View
Amsterdam is served by world famous Schiphol Airport ___ is four meters below sea level.
a. which
b. that
c. whose
d. (Nothing is needed.)
