题目内容
根据下面括号里汉语的提示和句子的意思，写出恰当形式的英语单词，每空格只写一个单词。
What a lovely morning!The ________(鸟儿)are singing in the trees．
The shopping-mall is on ________(营业)from 9∶00 a.m.to 10∶00 p.m．
The temperature in Harbin is very low in winter, usually below ________(零)．
The man seemed to be waiting for ________(某人)in the building．
I heard some noise from the room ________(在上面)．
