Which sentence does not contain a hidden verb? the lab assistant gave a demonstration on how to create a suitable sample. the office manager analyzed the financial reports. the associate dean arrived at the conclusion that the computer labs are outdated. the information technology department has a requirement for technical training. do you have a need for a new laser printer?

Answer: the office manager analyzed the financial reports.

A hidden verb is a verb turned into a noun. I've put the hidden verbs in parenthesis below. I given the revision for eliminating them to make the sentence clearer.

the lab assistant gave a (demonstration) on how to create a suitable sample. [The lab assistant demonstrated how to create a suitable sample]

the associate dean arrived at the (conclusion) that the computer labs are outdated.

[T he associate dean concluded that the computer labs are outdated.]

the information technology department has a (requirement) for technical training.

[The information technology department requires technical training.]

do you have a (need) for a new laser printer?

[Do you need a new laser printer?]