Complete the sentences with one of the following (a, b, c, d) verb forms.
7. I Greek history since last October.
a) have been studying b) study; c) have studied; d) am studying
8. He to the bus station and didn't stop to talk with us.
a) had hurried; b) had been hurrying; c) hurried; d) was hurrying
9. When she ………….. out of the house, she stopped to admire the roses.
a) had gone'; b) was going; c) went; d) had been going
10. He picked up the book he ………..
a) read; b) had read; c) had been reading; d) was reading
11. John ………… a letter by the window. Tell him he is wanted on the phone.
a) writes; b) has been writing; c) has written; d) is writing
12. I know Peter, we in the same bank.
a) have been working; b) work; c) are working; d) have worked
2. The scientist is developing a new source of energy. The scientist was developing a new source of energy. The scientist will be developing a new source of energy.
3. The engineers are working at the problem of using solar power. The engineers were working at the problem of using solar power. The engineers will be working at the problem of using solar power.
4. The people are not using poor methods of research. The people were not using poor methods of research. The people will not be using poor methods of research.
5. The students are not having an interesting discussion. The students were not having an interesting discussion. The students will not be having an interesting discussion.
6. The sun is not shining brightly. The sun was not shining brightly. The sun will not be shining brightly.
7. The workers are complaining about unsafe working conditions. The workers were complaining about unsafe working conditions. The workers will be complaining about unsafe working conditions.
8. The government is trying to protect consumers. The government was trying to protect consumers. The government will be trying to protect consumers.