I . Rewrite , using " It's " + Adj + to_V
1 . To get a taxi is easy .
⇒ It's easy to get a taxi .
2 . To do my homework is difficult .
⇒ It's difficult to do my homework .
3 . To see a snow is wonderful .
⇒ It's wonderful to see a snow 
II Complete with the past frogressive .
1 .
⇒ Peter was practising his piano at yesterday . 
2 .
They were swimming in the rives .
Chúc bạn học tốt ^^
( Mong Admin đừng Xóa )

I ) Rewrite :

1 . It's easy to get a taxi

2 . It's difficult to do my homework 

3 . It's wonderful to see a snow 

II) 

1 . was practising/practicing

2 . were swimming