Answer: the disadvantages are that you are still on a screen regardless of what you are doing. Additionally, depending on the app it could take up additional space on your phone which isn’t exactly a good thing.
Explanation: while on the contrast, the advantages can include motivation on working out to become the best version of yourself.
Or maybe it could give you tips and motivation on how to become the best version of yourself.
The sentence that is best as it is is option B: Only Dave will go with us; the others are busy. The rest of the sentences contain incorrect parts such as the proper use of the word "only". In the first sentence, it should be "only to watch". In the third sentence, it should be "only drinks water". In the third sentence, it should be "Only Leah studied".
Answer: WILL
Explanation: Hope this helps
Answer:
they feel optimistic about the future