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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If/Unless - Conditional type 1Frequency AdverbsPRESENT SIMPLE vs PRESENT CONTINUOUS + QUANTPerfect Verb TensesGrammar RulesModals VerbsPast and Present TensesInversions and Subjunctive�Put� Phrasal VerbModal VerbsOther quiz:
Tenses › View………. your brother ……… early last night?
A. Did / sleep
B. Is / sleeping
C. Will / slept
D. Has / slept
Grammar › View
According to recent studies comparing the _______ value of meat from wild animals and meat from domesticated animals, wild animals have less total fat than do _______ fed on grain and more of a kind of fat they think is good for cardiac health.
A. economical – plants
B. shared – cattle
C. nutritional – livestock
D. cattle – livestock
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.
D. I wouldn’t have a license.
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