М. М. Кутепова The World of Chemistry Мир

A new technique ..., the yields rose.

was worked out

was being worked out

8. 
   to be worked out
   
9. 
   having been worked out
   

Section 3
Put C if the sentence is correct. Put X if there is a mistake in the use of the conditional.

14. 
    If he had not tried to make the experiment, he would not have discovered this phenomenon.
    
15. 
    If he would be more intelligent, he would be invited to join the team of investigators.
    
16. 
    If our laboratory would be larger, I would not have to work in the other one.
    
17. 
    If he was ready, we would begin our discussion.
    
18. 
    If my paper had been ready, I would go to the conference last month.
    
19. 
    If they had been very careful with this substance, they would not have had that explosion in the laboratory.
    
20. 
    If I will finish the work in time, I will join you at the lecture.
    
21. 
    If the professor had known the truth, he would have been very angry.
    
22. 
    If they had worked in the laboratory more, they will not have broken so much glassware.
    
23. 
    If Pete had been at the lesson, I would have saw him.
    
24. 
    If I had seen him, 1 would have reminded him about his promise.
    

14. 
    If you will join us, where will you like to go?
    
15. 
    If she had told me the truth, I would have helped her with her wo*-
    
16. 
    If I would have a degree from the University, I would have a gooci °b.
    
17. 
    If he had been on time, we would have asked him many interesting «uestions.