Question: Thus if you have 3 computers you must buy 3 licenses
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Answer: Thus, if you have 3 computers, you must buy 3 licenses.

Question: English verb sound off
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Answer: English verb: sound off

Question: Some investigators suggest that drugresistant parasites occur and others suggest these drugs of choice never eliminate all of the parasites
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Answer: Some investigators suggest that drug-resistant parasites occur and others suggest these drugs of choice never eliminate all of the parasites.

Question: 4210 They said to him No my lord but your servants have come to buy food
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Answer:
42:10 They said to him, "No, my lord, but your servants have come to buy food.