A
The Chinese (invented/have invented) paper.
invented (simple past--historical fact)
This is the third piece of cake that you (ate/have eaten) today.
This is the third piece of cake that you have eaten.
(present perfect--from past until present)
She (died/has died) four months ago.
died
(simple past--completed action, finished time period)
My notebook isn’t here anymore. Someone (took/has taken) it.
My notebook isn’t here anymore. Someone has taken it.
(present perfect--recent past action affecting/related to present) MINUS POINTS!!!
The car industry (suffered/has suffered) huge losses since the factory workers began their strike.
The car industry has suffered huge losses since the factory workers began their strike.
(present perfect--from past until present)
They (finished/had finished) eating dinner by the time I got home.
had finished (past perfect--past even completed before a second past event)
When they (arrived/have arrived) at the party, Sue (already went/had already gone) home.
When they arrived at the party, Sue had already gone home.
(past perfect--past even completed before a second past event)
When he (slammed/had slammed) the door, the picture (fell/has fallen) off the wall.
When he slammed the door, the picture fell off the wall.
(simple past--past actions connected to each other)
She said she (paid/had paid) the bill a week before.
She said she had paid the bill a week before.
(past perfect--reported speech of completed past action)
How long (were you/have you been) a doctor?
How long have you been a doctor?
(present perfect--from past until present)
At last, I ___ my project. Now I can take a break.
a. completed. b. had completed c. have completed d. was completed
c. have completed (present perfect--recent completed action)
When I ___ shut off my computer, it crashed.
a. tried to b. had tried to c. have tried to d. try to
a. tried to
(simple past--past actions connected to each other)
How many times ___ to this CD today?
a. were you listening b. had you listened c. have you listened d. do you listen
c. How many times have you listened to this CD today?
present perfect--from past until present
She said that her husband ___ fishing the previous night.
a. had go b. has gone c. would go d. had gone
d. had gone
(past perfect--reported speech of completed past actions)
When I ___ dinner, I sat down to watch TV.
a. ate b. had eaten c. have eaten d. was eating
b. had eaten
(past perfect--unconnected past actions)
When I (open) the window, the cat jumped in.
opened (simple past--past actions connected to each other)
He can’t drive us today because he (lost) his car keys.
He can't drive us today , because he has lost his car keys.
(present perfect--recent past action affecting/related to past) MINUS POINTS!!!
When I (finish) washing the dishes, I did some vacuuming.
When I had finished washing the dishes, I did some vacuuning.
(past perfect--unconnected past actions)
The police found that the criminal (leave) his house at least two hours before the robbery took place.
The police found that the criminal had left his house at least two hours before the robbery took place.
(past perfect--past even completed before a second past event)
At last I (finish) all the homework exercises.
At last I have finished all the homework exercises.
(present perfect--recent completed action)
I caught the train for Chicago at seven yesterday morning.
He said that have caught the train.....
(past perfect--reported speech of completed past action)
I studied English for the past five years, but I still have difficulty speaking and writing.
I have studied English for the past five years, but I still have difficulty speaking and writing.
(present perfect--from past until present)
He had given me the report but I haven’t looked at it at all yet. Is this correct?
He gave me the report but I haven’t looked at it at all yet.
When I was in high school, I had often wished to be taller.
Is it correct?
When I was in high school, I often wished to be taller.
(simple past--completed action, finished time period)
He has wished to remarry, but ended up not doing so, probably because of his daughter’s objections.
has wished → had wished
He had wished to remarry, but ended up not doing so, probably because of his daughter’s objections.
(past perfect--unrealized past hope)