[ Progressive Perfect and Simple Verb Tenses ]
The ________ tense is formed by the base form of the verb or the base form + s.
A. present
B. past
C. future
D. present progressive
Select your answer:

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Grammar › View______ never too late to make a change.
A. Its
B. It’s
C. Its’
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PERFECT MODALS. They didn’t finish the project on time. They ___________ started earlier.
A. should have
B. must have
C. could have
D. might have
