I'm afraid I can't可以单独作为一句话吗

I'm afraid that he can't .这里that 去掉可以吗 I'm afraid he can't I'm afraid I can't可以单独作为一句话吗 I'm afraid that he can't ...能不能去掉“that”? I'm afraid that I can't.为什么afraid后面没有跟of I'm afraid I can't hear you.这句话为什么afraid后不加that? I'm afraid I can not stand I'm afraid you can't have a look.afraid是形容词,后面为什么加look? I'm afraid I can't .I have too much homework( )-now答案说明为什么 I'm afraid I can't后面加否定吗I'm afraid I can't remember ( )A.something elseB.anything elseC.else anything i'm afraid i can't hear you和i can't hear you 有什么区别么 i'm afraid与i'm terrified的区别___you can't park your car here用i'm afraid与i'm terrified哪一个?为什么? I'm afraid you can't sit here.--Sorry,I___know.用didn't 还是 don't i believe that的that有什么用that在这是什么意思可以拿掉吗,还有i'm afraid that i can't The book is ( )French.I'm afraid I can't read it.用介词回答 请把He said,I'm afraid i can't finish this work“改为间接引语 i can t help you with your homework i m afraid宾语从句 I'm afraid I can’t help you ____ your problem.用for 还是with I'm afraid ______ (lose) my key.I can't find it now