What is body wash?

English Grammar Tests, Elementary Level

ESL/EFL Test #274 [color=blue]“Basic Grammar Exercises (4)”, question 1

I body wash in the shower.

(a) use
(b) used to
(c) using
(d) been using

English Grammar Tests, Elementary Level

ESL/EFL Test #274 [color=blue]“Basic Grammar Exercises (4)”, answer 1

I use body wash in the shower.

Correct answer: (a) use

Your answer was: [color=green]correct
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I use body wash in the shower = I wash my body in the shower?
Why do we use: ,use’’ in this sentence? It is strange to me.
Thanks

‘Body wash’ is a kind of soap or detergent.