JLPT

In this situation...

Already done

you could say; one might say; I'd say ~

if; after; when ~

to do for; to do a favor

out of this group, [A] is best

already; anymore; again; other

even; even if; even though ~

the progressive tense of a verb which shows that something is currently happening or ongoing

Compare は and が

I think

very; awfully; exceedingly​

by; by the time; indicates time limit

interrogative

please don't do

Corresponds to the verb...of quantity

Do ~ times in ~ period

I think; it seems; probably; right?

together

if; after; when ~

go/arrive/go back (to do something)

there is; to be; is (living things)

whenever [A] happens, [B] also happens

... or...

Doing something in/at (time)

be not doing something

Negative form

Where

Comparison

Is that something?