Напишите предложения в вопросительной и отрицательной форме. Переведите предложения на русский язык.
1. Twice a year students have vacations.
2. The first-year students study general engineering subjects.
3. The dean will send the students to a big plant in summer.

1) When have students vacations? Twice a year students haven't vacations.2) Which subjects do students study the first-year? The first-year students not study general engineering subjects.3) Will the Dean send the students to a big plant in summer? The Dean won't send the students to a big plant in summer.