I am afraid ,后面相加if...,if 前面要加that吗?如果加了that 是宾从,再加if是重复吗?

I am afraid ,后面相加if...,if 前面要加that吗?如果加了that 是宾从,再加if是重复吗? if only 后面可以加 that吗 wondering if 中间可以加that吗 I am afraid that if you are lost it ,you must pay for it的状语是 请看一下这个句子,I wonder引导了一个宾从,it's...that是一个强调句型,那么if引导的从句在哪儿啊 it doesn't matter后面加that还是if? 首字母填空：If their present policy is c_______,I am afraid that t If the canteen in the school is not clean,I am afraid that ( I would appreciate it if .这句里it做形式宾语那前面为什么是if 不都用that么 the day i afraid is coming soon.有错吗''the day 后面如果加that是不是要加句 if i had…i would 的后面加动词是原形 还是 过去分词? i'm afraid that if you've lost.这里是宾语从句还是状语从句啊 我很纠结得!