[ Vocabulary and Grammar ]
____________ Bobby often ____________ physics experiment after school?
A. Does/do
B. Is/do
C. Does/do
D. Is/does

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Vocabulary and Grammar › ViewOur teacher is very demanding, but I’m sure we will appreciate her approach in the long ______________, even though some of us don’t now!
A. turn
B. run
C. up
D. value
Tenses › View
The port ____ new security measures when the official visited.
A. was implementing
B. implements
C. implemented
D. implement
Vocabulary and Grammar › ViewBoth small and large animals are a black bear’s ________.
A. species
B. prey
C. extinct
D. wild
Grammar › View
That group of stars __________ the Big Dipper
A. is called
B. are called
