1. to learn rnglish well is very dificult for us

-> learning

-> it is

2. this green house is more expensive than that red house 

-> that red house

-> that red house isn't

giải thích cho em với, em cảm ơn ạ!

1. he prefers staying here to walking on the rain
-> he'd
-> he'drather
2. despite her terrible problems she is always happy
-> though
3. though he is'll he did all exercises welll
-> in spite of

giúp em với ạ, em cảm ơn.

1. we wish all of us ( pass ) an entrance exam at high school

2. he was about ( go ) out with his friends 

he enjoys walking here

=> he is

giúp em với ạ