V. Перепишите следующие предложения, определите в них видо - временные формы глаголов и укажите их инфинитив; переведите предложения на русский язык.
1. It was difficult to translate the text without a dictionary.
2. They had no lectures last week.
3. During the course of study our students will carry out their practical work in well-equipped laboratories.
4. At higher schools specialization generally begins in the third year.