将下列句子换一种表达法。例：It's a famous mountain. The mountain is very f

将下列句子换一种表达法。例：It's a famous mountain. The mountain is very famous.
将下列句子换一种表达法。
例：It's a famous mountain. The mountain is very famous.
1.I' a long river.
2.I's a big lake.
3.It's a famous school.
4.They are beautiful photos.
5.It's my lovely hometown.