father made a promise that if I passed the exam he would buy me a computer.已经有if 做引导词了．前面还能再加that
问题描述：
father made a promise that if I passed the exam he would buy me a computer.
已经有if 做引导词了．前面还能再加that
答
if此处并非引导词；
that引导的是同位语从句。
答
that 不可以省略,因为that引导的是promise的同位语从句,在同位语从句中,if引导条件状语从句,而真正的主句是 he would buy me a computer.