Final answer:
The main verb in the sentence is 'knit.'
Step-by-step explanation:
The main verb in the sentence 'You can knit much better now than just a few weeks ago!' is 'knit.' The main verb is the action or state of being in a sentence, and it represents the action or condition being performed by the subject. In this case, 'you' is the subject and 'knit' is the main verb because it denotes the action being performed.
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