LO$6-12$: Give paragraphs unity $($p$.196).$ In the following paragraph, identify which sentence is the topic sentence $($Choose ONE$).$

${?}^1$ Frequently, department managers and supervisors recruit applicants without working through our corporate human resources office. ${?}^2$ Our human resources departments at all of our locations across the country have experienced this problem. ${?}^3$ Recently, the manager of our tool$-$design department met with a graduate of MIT to discuss an opening for a tool designer. ${?}^4$ The graduate was sent to the human resources department, where she was told that no such position existed. ${?}^5$ When the tool$-$design manager asked the director of human resources about the matter, the manager learned that the company president had ordered a hiring freeze for two months. $\text{'}$I$\text{'}$m sure that our general employment situation will get better. ${?}^7$ As a result of the manager's failure to work through proper channels, the applicant was not only disappointed but also bitter.

Sentence $1$

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Sentence $3$

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Sentence $5$

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Sentence $7$