Помогите плиз с переводом желательно не через переводчик, сильно картавит слова!!!
1. If mother buys a cake, we shall have a very nice tea party.
If mother bought a cake, we should have a very, nice tea party.
If mother had bought a cake, we should have had a very nice tea party.
2. If we receive a telegram from him, we shall not worry.
If we received a telegram from him, we should not worry.
If we have received a telegram from him, we should have not worried.
3. If you do not work systematically, you will fail the exam.
If you did not work systematically, you would fail the exam.
If you had worked systematically, you would have failed the exam.