The word which best completes the given sentence is
When a person is speaking grammar and wants to speak or write it correctly according to the rules of grammar, then he would have to obey the rules of concord.
This rules of concord are used to make sure that the subject and verb agree in both number, tense, etc and we can see that there is the narration about a future event and the word "Will" is the answer.
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Answer: I'm not 100% sure, but I think the answer is B
Explanation: I think the answer is B because for women if they go on apps such as pintrest or Instagram, they are more likely to get addicted. With men, they mostly use their phones to play games, and playing games for a long period of time can lead to addiction. There's no specific way to really tell who is going to get addicted to phones based on gender alone, but it can be easier to be addicted because of a certain app men, and women are using.
I think that it is after the salutation or before the closing of the letter. If it were a letter, it would look like this:
Dear Dr. Doctor,
(Dear is the Salutation). Body of letter. Body of letter. Body of letter. Body of letter. Body of letter. Body of letter. Body of letter. Body of letter. Body of letter. Body of letter.
Sincerely,
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