[ Vocabulary and Grammar ]
Scientist use _ very strong telescope to help them look fat out into space.
A. a
B. an
C. the
D. any

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Grammar › ViewI can’t sing. I wish I …………….
A. am not singing
B. could not sing
C. could sing
D. can sing
Grammar › View
He ___ play video games in the evening.
A. don’t
B. doesn’t
Grammar › ViewWhich of the following nouns is a thing?
A. doctor
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C. nurse
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Conjunctions › View
_______ John was watching television his wife was reading a book.
A. after
B. before
C. while
D. during