I'm afraid to go out alone at night,because of d______ 答案是darkness,求解析~~~为什么是darkness而不是dark？？？

I'm afraid to go out at night.(该为同义句）I'm afraid __ __ __at night I'm afraid to go out night.（改为同义句） I'M afraid Ihave to go i’m afraid to go out at night because it is so 【dark；darker】填那个,说理由!` I'm afraid that I could not go to shanghai I am afraid ---(go)out alone I'm afraid to go out at night改同义句I'm afraid to go out at night.(改为同义句)I'm afraid _____ _____ _____ at night.He always plays computer games at night.His father is angry.（合并）His father is ____ ___ him ___ he always plays compu I am not afraid of the___.I dare to go out. -Can I go out to play now? -______________A.Certainly not! B.I'm afraid not C.Sure not D.Perhaps you can't.选A对吗? I’m afraid I can’t go ___________ to help you.1.through the way2.out of the way3.in the way4.by way -I plan to go out for a trip,but I'm afraid I don't know the() -A map is helpful,I think-I plan to go out for a trip,but I'm afraid I don't know the() -A map is helpful,I think.A.priceB.wayC.time I'm afraid to go out alone at night,because of d______ 答案是darkness,求解析~~~为什么是darkness而不是dark？？？ It'll turn out a wet day,I'm afraid.的意思Where we shall go tomorrow is up to you.的意思 I'm afraid I have to go now 这句话是什么意思? I'm afraid you have to go to bed without supper. 44I’m afraid I can’t go ___________ to help you.-----A.-through the way of -B.-out of the way to-C.-in the way of -D.-by way of I'm afraid I can't go to your birthday party.I'm ____ ____ ____ ____ I need to go out