Откройте скобки и поставьте глаголы в Present
Perfect или Present Prefect Continuous. (писать только глаголы).
1). She (study) all day.
2). He’s not here because he (go) to work. He’ll be back at 4 o’clock.
3). The children already (clean) their room.
4). I (work) without break since 8 o’clock.
5). A new DVD store (open) in our neighbourhood.
6). How long they (work) on this project?
7). I just (see) that new action film.
8). I (look) for my keys since morning.
9). They (be) friends for a long time.
10). She (lose) her keys.
Лобачевский сделал рискованный шаг и создал новую геометрию, не предназначенную для обозначения реальности. Это была лишь самодостаточная математическая система на поверхности так называемой псевдосферы. Геометрия Лобачевского стала революцией как в математике, так и в философии науки.
1) How long will you be owning this beautiful house, Mr Starr? - Not so long. I’ve just bought it. 2) Look at Nick's clothes! I think he played football. 3) I'm so tired. I was skiing all the afternoon. 4) I know this rule nearly all my life. 5) I have been phoning him for an hour and a half. There is no answer. What was he doing all this time? 6) If they have been in Moscow for two weeks, they have visited the Bolshoi already, I think. 7) My friend Rose has been studying French since last year. She can speak it a little.