根据句意及汉语提示填空。It’s very important to teach the children about road ______ (安全).
She always helps me ______ (纠正) my English pronunciation.
I was still _______ (醒着的) until 12：00 o’clock last night because of the noise.
Barack Obama became the 44th _______ (总统) of the United States in January, 2009.
My father didn’t _______ (答应) to buy me a mobile phone at once.