Answer:
1- By the end of the year, I (save) <u>would have saved</u> $5oo.
2- By this time next year, my father (spend) <u>would have spent</u> five years in France.
3- Scientists (possibly/develop)<u> would possibly have developed</u> a new vaccine for AIDS in twenty years’ time.
4- They (arrive) <u>must have arrived</u> in Canada by now.
5- By the end of this week, I (revise) <u>would have revised</u> all my Math’s lessons.
6- When you get to the airport, Paul(already/arrive) <u>would have already arrived</u>
7- I (leave) <u>will leave</u> by seven.
8- Kate (not finish) <u>would not have finished</u> the essay by the weekend.
9- At this time next year, they (build) <u>would have built</u> a new hospital in our city.
10- Peter (perfect) <u>have perfected</u> his English by the time he comes back from London.
11- In five years’ time I (graduate) <u>would have graduated</u> from university.
12- I think Jane (receive) <u>had received</u> my letter by Tuesday.
13- He (live) <u>would have lived for 10 years</u> in Rome by next July.
Explanation:
The question is about the best possible way to complete the sentences. This would show future action that could have been done or the past actions that was achieved. <em>This is completed by using</em><em> would, should, have</em><em> etc and the appropriate verb tense.</em>