[ Grammar ]
It is our responsibility to ________ our planet’s ecosystems.
A. preserve
B. preservation
C. preserving
D. preserver
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Prepositions & Prepositional Phrases › ViewChoose the preposition that can replace “across” without changing the meaning of the following sentence:
“Mike ran across the park without stopping to play.”
A. behind
B. between
C. through
D. after
Grammar › View
Last week, we ____ happy in the afternoon.
A. are
B. were
C. will be
Grammar › ViewThere used __________ a stadium here, but it closed a long time ago.
A. be
B. to be
C. been
D. being
Grammar › View
Liz ___________ play her guitar 2 months ago, but now she can play it well.
A. couldn’t
B. could
C. can’t