[ Grammar ]
When we ____ (heat) water to 100 degree Celsius, it ____ (boil)
A. heat/boil
B. heats/boil
C. heat/boils
D. heats/boils
Select your answer:
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Grammar › ViewNadal ___ play tennis at home.
A. don’t have to
B. should
C. can’t
D. ought to
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A few ladies _______ the room.
A. cleans
B. clean
C. cleaning
D. cleaned