Read the sentence and answer the following question:
our assignment this week directs us to learn about chemical compounds and their properties.
which words should be replaced with something more precise?
learn about
chemical compounds
directs us
their properties

I would contend that the right answer is the 3) "direct us."

Explanation: Just to elaborate a little on the answer, it can be added that an assignment is a specific task given to someone. The verb "direct" sounds vague and imprecise in this context, and particularly very harsh, since it suggests that the students have been given an order, rather than a task that is supposed to be enjoyable and meaningful for their course of studies. I would replace "direct us" for "asks us" or "tasks us with learning."

both the address and the poster use diction to convey their message. diction is defined as a style of writing or speaking based on the types of words chosen in order to send a message. parallelism is when a similar sentence structure is used for several sentences on a text; roosevelt's address doesn't follow that. repetition has to do with repeating a word or sentence in order to emphasize and idea, however neither the poster nor the address use repetion. finally, the address doesn't use images to convey a message.

corn is your best answer.