Раскройте скобки, употребляя глагол в форме past perfect, past indefinite или past continuous. 1.she… (scarcely /to cross) the street when the traffic lights…(to change). 2.the report… (to be) extremely boring. i… (to listen) to the speaker another ten minutes and (to leave) the hall. 3./to look) unhappy this morning? – she.. (to quarrel) with jack. 4.we…(to have) a very good time. we…(to go) to a concert. 5.he…(to be) an unusually gifted child. by the time he…(to be) eight he…(to know) the multiplication tables by heart and…(to read) all the history textbooks we…(to have) at home. 6.he… (to agree) to help only after i… (to ask) him several times. i never… (to find) out why he… (to refuse) so long. 7.by that time the police (to have) all the necessary information so they… (to look) for the criminals in all the places where people…(to see) them before. 8.he…(to be) thirsty again though he…(to drink) half of the bottle of juice since he (to come) home. 9.i…(to need) your advice at that time that's why i…(to call). i…(to call) many times for about an hour but nobody…(to answer) (you /to be) out? - actually i…(to sleep). your calls…(not/to wake) me up because i…(to take) a sleeping pill. 10. laura… (to spend) a sleepless night and…(to suffer) from a bad headache. she…(to want) a rest badly. she (to go) out, (to walk) for some time but it…(not / to help) and by 1 o'clock in the afternoon she…(to be) in bed again. hardly (she / to start) to fall asleep when the telephone…(to ring) and she…(to get) up.
1. Is concrete a natural or artificial stone?
2. What kind of properties it has?
3. In what way can concrete be used in moulds?
4. Does it resist fire?
5. Is concrete used in skeleton structures?
6. How many functions have aggregates?
5.
1. In other words aggregates CAN be defined as a mass of practically inert mineral materials, which ...
2. All aggregates both natural and artificial which have sufficient strength and resistance to watering and which do not contain harmful impurities MAY be used for making concrete.
3. As aggregates such materials as sand, pebbles, broken stone, broken brick, gravel,slag, sinder, pumice and others CAN be used.
4. It sets under water, CAN be poured into moulds so as to get any desirable form.
6.
1. can
2. may
3. must
4. can
5. has to help
7.
sets,can be poured, has, resists.- Present Simple.
1.Я бы простила тебя, если бы ты тогда сказал правду
I would have forgiven you if you had told the truth then
2. Можешь остаться дома, если тебе плохо
If you are unwell, you can stay at home
3. Ты всегда можешь спросить дорогу, если заблудишься
If you lose your way, you can always ask for directions
4. Я люблю читать в кровати
I love reading in bed
5. Извините, я не хотел прервать вас
I am sorry, I didn’t mean to interrupt you
прекратите играть
Please, stop playing
7. Я остановился, чтобы поговорить с другом
I stopped to talk to a friend
8. Я с нетерпением ожидаю получения денег
I can’t wait to receive the money
9. Ты бы не был голоден, если бы съел что-то раньше
You wouldn’t be hungry if you had eaten something earlier
10. Если бы я вышла за него замуж, я бы жила счастливо
If I had married him, I would live happily