Употребите глагол в скобках в present indefinite или future indefinite. 1) when he (call) i (give) him a piece of my mind. 2) i (be) at home if you (need) anything. 3) they (be) in the gallery if you (decide) to speak to them. 4) if they (want) your advice, they (get) in touch with you. 5) if you (have) anything to report, put it in writing and send it to me.

1) When he calls,I will give him a piece of my mind.
2) I will be at home if you need anything.
3) They will be in the gallery if you decide to speak to them.
4) If they want your advice, they will get in touch with you.
5) If you have anything to report, put it in writing and send it to me.