Задание 1. Поставьте предложения в отрицательную форму. К выделенным словам поставьте специальные вопросы.
P.S Слова в скобках к которым нужно задать специальный вопрос
1) He grants us a 3% discount (for cash payment).
2) You should have (called) your friend long ago.
3) (He) knew what was wrong with the machine.
4) The manager will be able to (receive) to Mr. A. only in the afternoon.
5) I had to sign this (agreement) only on Monday.
6) They have to transport their products by rail.
7) Participation in fairs helps (promote our goods).

Спасибо большое :з

1) He does not grant us...In what case does he grant us a 3% discount?2) You should not have called ....What should you have done?3) He did not know what....Who knew what was wrong with the machine?4) The manager will not (won`t) be able not to receive....What will the manager be able to do for Mr.A only in the afternoon?5) I did not have to sign this agreement only on Monday.What did I have to sign on Monday?6) They don`t have to transport their products by rail. 7) Participation in fairs doesn`t help to promote our goods.What does participation in fairs help to do?