【单选题】CIDR地址块实际可表示的地址数为()。
【单选题】His father often ______TV in the evening.
【单选题】His father often tells him _______ in that river because it’s dangerous.
【简答题】根据句意及首字母提示完成空格中所缺的单词。 1. His father often goes abroad and he can speak several foreign l_______. 2. China is one of the largest c_______ in the world. 3. My son likes eating hamburgers. He says they a...
【单选题】His father often comes back from work at 10 o’clock at night _______ his mother is waiting for him.
【单选题】His father often helps him _____ his lessons. [ ]
【单选题】Linda with his father often _________ the zoo to see the animal.