[ Tenses ]
His health has improved a lot since he ____ doing exercises regularly.
A. starts
B. started
C. has started
D. had started

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Mixed Conditionals › ViewIf I had studied
A. I would have my driving license
B. I would had my license.
C. I will have a driving license.
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Verb Tenses and Modals › View
The children are sleeping right now. What aspect of the verb is shown?
A. Future Progressive
B. Present Progressive
C. Past Progressive
D. Past Perfect