单词拼写，根据句意和汉语注释，写出单词的正确形式。
________ with the top student, that boy is very lazy and isn't hard-working．(比较)
All of the students were excited about Yao Ming's ________(到达)
根据句子意思和首字母提示补全单词或用括号中所给词的适当形式填空。Would you mind k________ your voice down? They are having a meeting．
根据句子意思和首字母提示补全单词或用括号中所给词的适当形式填空。
－How long have you c________ stamps?
－For three years and a half．
单词拼写
Mr White was very a________ with the students, because they didn't clean the classroom．
I don't think I can get to the top of the mountain because the air is too t________．
To our s________, Lucy failed her Chinese exam．We thought she did well in Chinese．
It was my brother's birthday yesterday, and he r________ many presents．
The weather report said that the t________ would fall below zero this evening．
My mother is too busy and can't go．My father will go i________．