13. You (to keep) to any special diet?-Well, I (not to think) it (to be) good to eat a lot of meat. I usually (to have) meat only once a week. I(to eat) lots of fruit and vegetables.

Do you keep to any special diet? - Well, I don't think it is good to eat a lot of meat. I usually have meat only once a week. I eat lots of fruit and vegetables.

Объяснение: Здесь в основном используется Present Simple: 'Do you keep' - общий вопрос, 'I don't think' - мнение, 'I usually have' - повторяющееся действие, 'I eat' - факт.