We are moving forward in science and math and health, which is saving lives.
Answer and Explanation:
1. Gregor is overwhelmed. This can be seen by the fact that he put up with a job he does not like, in order to provide for his family. In addition, we can say that Gregor feels overwhelmed. This can be seen in the moment when Gregor works almost without rest, becoming more concerned with how he goes to work than with the transformation of his own body.
2. Metamorphosis does change Gregor, although the change is not beneficial. Gregor was the provider of the family, but the metamorphosis makes him shift to the burden of the family, since he can no longer work and is dependent on everyone, who clearly does not want to help him.
After they rested a few days, the aliens revived sufficiently to explore.
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In order to check comma placement, swith the sentence around and see if it still makes sense. In this case it would be:
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The aliens revives sufficiently to explore after they rested a few days.
