Exercise 3. Change the tense according to the adverbs given in the brackets. 1. We have several lectures today (yesterday, tomorrow). 2. Our surgeons perform numerous operations every day (yesterday, next week). 3. Medical students take several exams at the end of each semester (last semester, next semester). 4. This semester we learn how to diagnose diseases and prescribe medicine (last semester, next semester). Exercise 70. Make up questions starting with the words given in the brackets. (Составляют вопросы, начинающиеся со слов, приведенных в скобках.) 1. We attend lectures in Biology and Chemistry on Monday. (What ...) 2. The autumn semester lasts till the end of December. (How long ...) 3. I'll go to my hometown in January. (When ...)

Exercise 3. Change the tense according to the adverbs given in the brackets.

We have several lectures today (yesterday, tomorrow). - We had several lectures yesterday. - We shall have several lectures tomorrow. Our surgeons perform numerous operations every day. (yesterday, next week). - Our surgeons performed numerous operations yesterday. - Our surgeons will perform numerous operations next week. Medical students take several exams at the end of each semester (last semester, next semester). - Medical students took several exams last semester. - Medical students will take several exams next semester. This semester we learn how to diagnose diseases and prescribe medicine (last semester, next semester). - Last semester we learnt how to diagnose diseases and prescribe medicine. - Next semester we will learn how to diagnose diseases and prescribe medicine.

Exercise 70. Make up questions starting with the words given in the brackets.

We attend lectures in Biology and Chemistry on Monday. (What ...) - What did we attend on Monday? The autumn semester lasts till the end of December. (How long ...) - How long does the autumn semester last? I'll go to my hometown in January. (When ...) - When shall I go to my hometown?