Choose the option that corrects the error in the underlined portion. if no error exists, choose "no change is necessary." bill, the foreman of the construction company, is concerned about the safety in the large building. they have had three accidents in the past week. question 17 options: a) it has had b) she has had c) members of the crew have had d) no change is necessary.

d) no change is necessary.

Explanation:

The sentence reads: Bill, the foreman of the construction company, is concerned about the safety in the large building. They have had three accidents in the past week.  

This needs no change as the subject is talking about 'the company' as a whole. So, the subject will be taking the plural form, thus making the use of 'they" valid.

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explanation:

the answer is b. the tomb is underground and dark, and its opening is covered by a heavy grate.