1. It depends on ________ we have enough money.
A. if B. whether C. if or not D. what
答：B。在主语从句、表语从句、同位语从句、让步状语从句、不定式前或介词后一般用whether，不用if。
2. We discussed ________we should make him monitor.
A. if B. whether C. that D. what
答：B。在discuss动词后一般用whether，不用it。
