[ Grammar Modals ]
Experts say there might ______ (be) only 540 Amur tigers left in the world today.
A. been
B. have be
C. be
D. been
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Present Simple and Modal VerbsGerunds & Infinitives + VocabularyPast Tense vs Future TenseAdverbs by TypeFuture Perfect TensePast Perfect TenseAdjectives and comparisonsCardiology ServicesPresent Perfect - Just, Already, YetModals of AdvisabilityOther quiz:
Phrasal Verbs › Viewgo inside a car, a bus, etc
A. get in
B. get into
C. get off
Grammar and Vocabulary › View
What are you looking for? _______ I help you?
A. Did
B. Ought
C. Will
D. May
Grammar › ViewCalm down. There is ____ to worry about.
A. nothing
B. anything
C. something
D. everything
Past Modals › View
I haven’t got my wallet. I ____ left it at home.
A. should have
B. must have