[问答题]用括号中所给词的适当形式填空。. __ (teenage) want to go to the Watertown. 2. He got two __ (Australia) stamps from his friend. 3. The Yellow River is the __ (two) longest river in China. 4. Alice asks me __ (polite) to put the things away. 5. The weather in Beijing is quite __ (difference) from that in Guangzhou.