1. When we came to the station the train had already (left) and we (had to wait) for the next train for an hour and half. 2. Hallo, Peter. I (am) happy to meet you. I (have not seen) you since 19... I must say that you have greatly (changed). 3. I'm glad that this (is) a through train and we (do not have to change). 4. My friend said that he (had made a journey to the Crimea two years before. 5. When I (met) Nick yesterday he (was hurrying) to his office and I (could not have a word) with him. 6. He was sorry that he (had missed) the opportunity of visiting the British exhibition. 7. I'm afraid I (shall not to be able) to collect the tickets tomorrow. 8. He wondered when train 15 (was due) in Moscow. 9.I (came) to the station at 5 o'clock yesterday. My friend (was wait) for me there as he (had come) earlier than I. We (collected) his luggage at the left - luggage office and (went) to the platform. 10. I (asked) the porter to see to my luggage. My train (had arrived) already. We (found) my carriage, I (snowed) my ticket to the attendant and (got in). There (were) a few pessengers in my compartment. They (had put) their suit-cases on the luggage-racks and (taken) their seats.
1. The heart is simply a pump, which circulates blood throughout the body. 2. Tubes called blood vessels carry it from the heart to all parts of the body and back again. 3. The heartbeats can be felt as the pulse where certain arteries lie just beneath the skin, and the most well – known place where this occurs is at the wrist. 4. The heart consists of two chambers, left and right, separated from each other by a wall. 5. Each chamber is further divided into upper and lower compartments, which communicate with each by valves. 6. Each upper compartment is called an atrium. 7. Heart failure, or cardiac arrest, means that the heart has stopped beating. 8. The heart can be made to beat artificially by rhythmically applying pressure to the chest. 9. When pressure on the chest has been relaxed, blood returns to the heart again.
2. Tubes called blood vessels carry it from the heart to all parts of the body and back again.
3. The heartbeats can be felt as the pulse where certain arteries lie just beneath the skin, and the most well – known place where this occurs is at the wrist.
4. The heart consists of two chambers, left and right, separated from each other by a wall.
5. Each chamber is further divided into upper and lower compartments, which communicate with each by valves.
6. Each upper compartment is called an atrium.
7. Heart failure, or cardiac arrest, means that the heart has stopped beating.
8. The heart can be made to beat artificially by rhythmically applying pressure to the chest.
9. When pressure on the chest has been relaxed, blood returns to the heart again.