[ Modal Verbs ]
Which modal verb is used to express obligation?
A. can
B. will
C. must
D. should
Select your answer:
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Present Continuous › View(A) Are they working now?
(B) No, they ….
A. don’t
B. isn’t
C. aren’t
D. didn’t
Vocabulary › View
without courage or confidence
A. maturity
B. timid
C. utmost
D. endurance