[ Grammar ]
The dinosaurs —- for millions of years before humans appeared on Earth.
A. have been extinct
B. had been extinct
C. were extinct
D. are extinct

Random Topics:
Collective NounsGerund and InfinitiveConjunctions, Interjections and DeterminersProgressive Verb TensesGrammar (either..or.. and neither..nor..)Coordinating ConjunctionsRelative Pronouns and AdverbsAdjective or AdverbFuture or PastVerb TenseOther quiz:
Grammar › ViewChildren should bath regularly. What does this verb mean in England?
A. Children should sunbathe
B. Children should take a bath
C. Children should bathe in the sea
Wh Questions › View
Where does Bill play football?
A. In a sport centre.
B. Because it’s fun.
C. On Fridays at 3:30pm
D. It’s football
Grammar › ViewThe book, _________ I read, was very satisfying.
A. which
B. who
C. where
Grammar › View
If I hadn’t been sick, he ______ out with me at the party.
A. goes
B. would go
C. went
D. would have gone
