i used to be afraid of the dark.为什么dark前要加the?

Uuit 2 I used to be afraid of the dark. “I used to be afraid of the dark. I used to be afraid of the dark. used to be+动原 句子 例：I used be afraid of the dark. I used to be afraid of the dark( )your sister ( )to be afraid of dogs?A Did,use B Did,used C Was,used D Is ,used I used to be afraid of flying in an airplane改为同义句I used to be afraid ______ ________in an airplane I used to be I used to be afraid of the dark.这句话的句子成分怎么分? are you afraid of speaking in front of people?no but I used to be是什么意思 I used to be afraid of the dark它的同义句是 I used to be afraid of speaking in front of the p________ i used to be afraid of speaking in __ __ __ __ ___ （当众） i used to be afraid of the dark.为什么dark前要加the? I used to be afraid of flying in an airplane.翻译 I ( ) to be quite afraid to live in that city ,but now I have ( ) to the life there.A.was used … got usedB.used… usedC.got used … been usedD.used…got used个人觉得选D I used to be happy Are you afraid of being alone?I ( ) ,but now I enjoy it.Are you afraid of being alone?I ( ) ,but now I enjoy it.A.used to B.used to be afraid of的用法i used to be afraid of the dark.那么这里的OF用法我也可以转成i used to be happy of the play computer?