1 If the rain hadn't been heavy,everybody could have gone outdoors.
2 If I hadn't been busy,I would have watched tv last night.
3 If people saw the UFO,they would call the National UFO Reporting Center.
4 If Thu could swim,she would go swimming in Lam Son Swimming pool.
5 If his flight hadn't been delayed, he could have been there on time.
6 If I had had your help,I could have overcome the problem.
7 If she had seen the signal,she would have stopped her car.
8 If you didn't speak too fast, they would understand you.
9 If he had enough qualifications,he would apply for the job.
10 If he polished his shoes, he would look smart.
