模仿例句改写以下句子
例句：
This policeman is tall.
But that policeman is taller.
He is the tallest policeman I have even seen.
题
1.This street is clean.
2.This man is old.
3.This river is long.
快啊，快啊
1.This street is clean but that street is cleanerthis is the cleanest streetI have even seen.2.This man is old.but thatman is older.he is the oldest manI have even seen3..This river is long. but that river is longer. this is the longestriverI have even seen
1.But that street is cleanerIt is the cleanest street I have even seen2.But that man is olderHe is the oldest man I have even seen3.But that river is longerIt is th
this street is clean ,but that street is cleaner,and those steet is the cleanestthis man is old but that man is olderhe is the oldest i have even seen this river is long
1.But that street is cleaner. It is the cleanest street I have ever seen.2.But that man is older.He is the oldest man I have ever seen.3.But that river is longer.It is the long
