have collected books since I was a child.
I
have been collecting books since I was a
child.
They
have always
wanted to study at the
University.
We
have known each other for a few years.
-
She
has been here all day.
-
He
has had his car for a year, (and still has it)
-
Exercise 3. Make sentences using the Present Perfect Simple or the Present Perfect Continuous; point out the sentences in which both the tenses are possible. 1.
(you/always/not/want) to travel around the world? 2. (I/pursue) this hobby since I was a
child. 3. (we/not/met) since we finished high school. 4. (what/actually/happen) to the company?
What is its present position? 5. For the last few days, (strange things/happen) in^the house. 6.
(we/achieve/much) for the past few years, and we are proud o f it. 7. Lionel is a peculiar man. So far
as I know (he/never/travel). (he/live) in this town all his life. 8. How long (you/live) here? 9.
(we/know) the Smiths for quite a long time. 10. How long (you/be) here? - For a few minutes. 11. It
is the first time (we/encounter) this phenomenon. 12. We (drive) for hours. Can’t we have a break
soon? 13. I’m out o f breath because I (run) to get here in time. 14. They (go) on holiday to Spain and
won’t be back until the end o f the month.
Exercise 4. Complete the sentences using the Past and Future Perfect Continuous tenses or adding appropriate adverbials. 1.
We (live) in Boston for six months when Ben arrived. 2. The members o f the board (wait)
for 10 minutes before Chairman showed up. 3. We (do) much work until the management appointed
a new research coordinator. 4. We (investigate) the new substance before we realized its full impact
on modern technologies. 5. Jack Dawson (watch) with binoculars for about three hours before the
18
suspect appeared. 6. Horance (run) his business smoothly when a terrible disaster occurred. 7. They
(spread) salt on the roads till the winter was over. It must have helped to prevent the formation of
ice. 8. Dave (investigate) a new book for some time when Jannette came down into the room. 9. I
suspect Delia (write) her memo until the end o f the working day. 10. By next Monday Betty (read)
for her exam for ten days. She has a chance to pass it, I think. 11. We (practice) grammar for four
months when we finish the course. 12. Consider it thoroughly: you (work) on the book for several
years when it is published. 13. Bill (travel) for a few hours when he reaches Westview. 14. In
September George (study) in the university for two years.