Если у вас возникли сложности с курсовой, контрольной, дипломной, рефератом, отчетом по практике, научно-исследовательской и любой другой работой - мы готовы помочь.
Предоплата всего
Подписываем
Perfect Tenses.( ознакомление)
Complete the sentences with the present perfect simple or continuous.
1___________________you___________________(finish) that report yet? What ____________you ________________(do)?
2. Sorry I’m late. I’________________________(talk) to the boss.
3. ______________you ever______(experience) a severe earthquake?
Complete the sentences with:
Have\has, haven’t\ hasn’t
2. The application of knowledge _______always been constructive.
3. We ___________worried much about our problems yet.
4. Knowledge _______expanded the limits of our minds.
5. Our hopes for a better world _______vanished.
Fill in the blanks with present perfect form of the verbs in the list.
offer, consider, develop, increase, change
1. Communication systems _________________greatly in the past thirty years.
2. The quantum theory _________________us many answers.
3. Science ______________________________our lives.
4. We _____never___________ our planet as a unit of life.
5. We ____________our understanding of the world.
Past Indefinite or Present Perfect? Put the verbs into the correct tense forms.
1) The engineer to show his foreign friends the bridge in the building of which he to take part in 1980. 2) He not/ to decide yet what to do. 3) Are you still studying or ... you already to find a job? 4) I to rush to the platform and to get on the train. 5) Don't worry! The equipment already to pack. 6) She to ask the clerk if all the trains arrive on time here.
Past Indefinite, Past Continuous or Past Perfect? Put the verbs into the correct tense forms.
1) They spoke so quickly that I didn't understand what they [to talk] about. 2) While we [to wait] for the train, it [to start] to rain. 3) We knew that the 2 o'clock train [to leave] already and decided to go by bus. 4) Where ... you [to be] at about three yesterday afternoon? - Oh, I [to repair] my car at that time. 5) The journey from Paris to London [to take] much longer before the Channel Tunnel was built. 6) I didn't convince the inspector that I [to lose] my ticket only some moments before. 7) The station master [to say] that no trains [to arrive] at the station during the night because of the heavy snowstorm in the mountains. 8) They [to work out] a detailed plan before starting off on an expedition.