[ Tenses ]
A new species of bird ______ in the Amazon rainforest by a team of biologists 2 years ago.
A. has discovered
B. is discovered
C. was discovered
D. has been discovered
Select your answer:

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Grammar › ViewAre they going to install a computer?
A. No, they aren’t
B. Yes, they are
C. Yes, they is
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There is a ____________ tiny insect on the wall. If you look carefully, you can see it.
A. very
B. too
C. enough
