----- Nội dung dịch tự động từ ảnh ----- 11. If I was good at Maths, I could be a Mathematician now. 12. Providing that he have a visa, he can go to any foreign countries. 13. If I will have a problem, I always ask my mother for advice. 14. John fails his driving test again. If he passed it, he could borrow his father's car. 15. But for your assistance, we couldn't get achievement many years ago. 16. If I had spoke Chinese, I could communicate with my Chinese customers at present. 17. I will go swimming if it will be sunny tomorrow. 18. As long as you spoke very fast, no one could understand you. 19. If computers hadn't been invented, our lives would have been very different today.