[ Modal Verbs ]
Which modal verb is used in affirmative sentences to express ability or permission?
A. can
B. must
C. should
D. may
Select your answer:

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Grammar - Present Perfect › View_____ you ever climb a mountain?
A. Have
B. Has
C. Having
Grammar › View
They translated some old documents last week.
A. Some old documents are translated by them last week.
B. Some old documents was translated by them last week.
C. Some old documents were translated by them last week.
