几道较难的英语题
1.We can see m_______ birds in the zoo than on Baiyun hill.
2.A l____ of people are swimming in the pool.
3.Miss Liu is ill.Miss Li is going toteach us i____.
4.We have much f_____ at the Xiangjiang Zoo.everyone is happy.
5.We must l____ now.Goodbye.
(题：根据句意,补充句子所缺单词（单词的第一个字母已给出）