1/ Study hard or fail the exam (using IF )
=>………………………………………………..
2/ He can’t help them because he is busy right now.
→ If ………………………………………………………………………………………………
3. The weather was very nice so we didn’t go camping.
→ If ………………………………………………………………………………………………
4. We are saving money because We want to buy a new house.(so)
=>…………………………………………………………………………………………………