My grammar book says that I should use present tense forms in conditional clauses with words like "if" to talk about the future.
We won't be able to go out if it rains. (NOT will rain)
Now I wonder if I should use "present tense" when "if" means "whether", as well.
I wonder if she will come to my party this week.
I wonder if she comes to my party this week.
Which one is correct?