[ Modals ]
Choose the best modal to complete this sentence:
You ___ enter the X-Ray room when the red light is on. You might get exposed to radiation.
A. have to
B. must
C. must not
D. cannot
Select your answer:
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Geography › ViewWhat of the following proves that the Earth is spherical?
A. Visibility of ships at sea
B. The stars
C. The moon and sun
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Tenses › View
I (write)_____________________________ a letter to my friend now.
A. am writing
B. have written
C. write
D. was write