I'm afraid you can't sit here.--Sorry,I___know.用didn't 还是 don't

I'm afraid I can't hear you.这句话为什么afraid后不加that? I'm afraid you can't have a look.afraid是形容词,后面为什么加look? I'm afraid you can't sit here.--Sorry,I___know.用didn't 还是 don't i'm afraid i can't hear you和i can't hear you 有什么区别么 I'm afraid that I can't give you the happiness which you want! I'm afraid I can't follow you.Would you please say that more slowly? 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 i can't agree with what you said. I'm _____ I can't lend you my car.填frightened还是afraid I can't stop smoking .For your health ,I'm afraid you( ).A can B mustn't C must 改错I'm afraid you can't speak to him these days,he is for vacation. I'm afraid you can't eat()at homein classin a hotelin a restaurant can you help me A.i'm afraid can't B.yes,please C.i'm afraid not D.No,that's all right怎么选?原因是什么? i'm afraid if i depend too much on you,i'll finally can't live without you one day. --I'm afraid I can't follow you. Would you please say that more slowly?--______.这个怎么回答 I’m afraid I can’t finish the work____________ to help me.A.unless you will comeB.unless you co I’m afraid I can’t finish the work____________ to help me.A.unless you will come B.unless you