[ Grammar ]
If you want to be an astronaut, you need to experience microgravity on a _______ flights.
A. habitable
B. universal
C. parabolic
D. unhabitable
Select your answer:
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Grammar › ViewGRAMMAR – PREFIXES
INSTRUCTION: Read the clue and choose the best option.
Can’t do it
A. impossible
B. unpossible
Gerund, Infinitive & Modals › View
He had been working for more than 12 hours. He ____ tired after such hard work.
A. may be
B. should be
C. can be
D. will be
E. must be