15. Please don’t disturb him if he (be)………………………………………. busy.
16. If ice (be)……………………………. heavier than water, it (not float)…………………………………….
17. They would be glad if the rain (stop)………………………soon.
18. If Jack (come) ………………………….to my party, I would have danced with him.
19. It’s too bad Helen isn’t here. If she (be) ……………..here, she (know) …………………….. what to do.
20. Lee will go to a Disneyland if he (save) ………………………… enough money
15. is
16. is/will not float
17. stopped
18. had come
19. were/would know
20. saves
15. Please don’t disturb him if he (be)………..is…………………………….. busy.
16. If ice (be)……….is.………………….. heavier than water, it (not float)…….won’t float………………………………
17. They would be glad if the rain (stop)……stopped…………………soon.
18. If Jack (come) ……had come…………………….to my party, I would have danced with him.
19. It’s too bad Helen isn’t here. If she (be) ……were………..here, she (know) …would know………………….. what to do.
20. Lee will go to a Disneyland if he (save) ……saves…………………… enough money