if定语从句的造句（20个！！）

They would have been here by now if they'd caught the early train.他们要是赶上了早班火车, 现在都该到这儿了.
I'll only stay if you offer me more money. 假若你肯多给钱, 我就留下.
You can stay to dinner if you like. 你愿意的话, 可以留下一起吃饭.
If I was a man they would have given me the job. 我要是男的, 这份工作就准给我了.
I wouldn't have believed it possible, if I hadn't seen it happen. 要不是亲眼目睹, 我决不会相信能有这种事.
If he were here I could explain to him myself. 要是他在这里, 我就可以亲自向他解释了.
If the patient should vomit, turn him over with his head to the side. 倘若病人要呕吐, 就帮他翻过身来, 头侧向一边.
If you would care to leave your name, we'll get in touch as soon as possible. 请留下您的名字, 我们尽快和您联系.
If you learned to type you would easily find a job. 假使你学过打字, 就容易找工作了.
If you have finished eating you may leave the table. 你要是吃完了, 就可以离席了.
If necessary I will come at 6. 如有必要, 我6点钟来.