. We haven’t settled the question of _____ it is necessary for him to study abroad.
A. if B. where C. whether D. that
. We haven’t settled the question of _____ it is necessary for him to study abroad.
A. if B. where C. whether D. that
C
句意: 我们还没有解决这一问题——他是否有必要去国外学习。根据句意排除B、D。介词of后面加宾语从句表示“是否……”时, 只用whether, 不用if 来引导。