[ Modal Verbs ]
Which modal do you use to express inner obligation?
A. can
B. should
C. have to
D. must
Select your answer:
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Subject Verb Agreement › ViewThe number of candidates who joined the contest ____ thirteen.
A. is
B. are
Grammar and Vocabulary › View
Choose the best option to fill in the gap: It never ___________ my mind when he tells lies to me.
A. enters
B. crosses
C. happens
D. takes