You cant enter that country without a passport
-> If you don't bring a pasport, you can't enter that country
Study hard and you will pass this entrance examination
-> if you study hard, you will pass this entrance examination
Ride your bike carefully or you will cause accident
-> if you don't ride your bike carefully, you will cause accident
You dont train harder. You dont break her past record
-> Unless you train harder, you don't break.... ( unless= if not )
Save electricity, or you will pay much per month
-> if you don't save electricity, you will pay....
Dont hope to be successful without trying your best
-> if you don't try your best, you won't be successful
Hard work leads us to success
-> if you work hare, you will get success
Tom found that book interesting

-> Tom was interested in that book ( interested in st: hứng thú với cái gì )
The show was interesting to the girls
-> The girls felt interested in the show
Mai swam very fast 
-> Mai was a fast swimmer
Mrs. Quyen is a careful typist
-> Mrs. Quyen types carefully
The flight had to be delayed bacause of the bad weather 
-> As the bad weather, the flight....
We fell asleep in front of the TV because of our tiredness
-> Because we are tired, we fell....
All the students love the principal because he is very kind 
-> ________because of his kindness, all the student....
Nam hasn't eaten anything for breakfast, so he felt hungry 
-> Because of not having eaten ...breakfast, he felt hungry
Rober dances very wonderfully
-> Robert is a wonderful dancer