A grid system will work better if public transit is a priority.
Should public transit be a priority, a grid system will work better.
The streets in this town ________ need to be repaired. (adverb of indefinite frequency)
Answers may vary.
By 2050, human health _______ a lot. (improve)
will have improved
By next year, she ________ here for 10 years. (live)
will have been living
By the end of this decade, I ________ two more foreign languages. (learn)
will have learned
It would be easier to navigate our city if we had a grid system.
Were we to have a grid system, it would be easier to navigate our city
The heating filters need to be replaced ______ they are too old. (adverb of purpose)
because
Many animal species ________ within the next 100 years. (disappear)
will have disappeared
At 4:00, he _______ tennis for 90 minutes. (play)
will have been playing
At the end of this term, we __________ English for 12 weeks. (study)
will have been studying
Many cities would build a subway system if it were affordable.
Were it affordable, many cities would build a subway system.
We have ________ approved the design of the new school. (adverb of definite frequency)
already
During my lifetime, doctors __________ most diseases. (cure)
will have cured
When Tom finishes the housework, he ________ for two hours. (clean)
will have been cleaning
By the 22nd century, the population _________ to dangerous levels. (increase)
will have increased
If the pedestrians had known about the construction, they would have taken a different route.
Had the pedestrians known about the construction, they would have taken a different route.
Some buildings are constructed ________ and have problems later. (adverb of manner)
hastily
By next year, scientists _______ an exciting new discovery. (make)
will have made
By 6 p.m., they ________ for the play for an hour. (practice)
will have been practicing
When the store finally opens, we __________ here for two hours. (wait)
will have been waiting
If you had called the city planning office, they would have told you what forms you need.
Had you called the city planning office, they would have told you what forms you need.
Push the stones down ________ to make sure they stay in place.
firmly
By 2060, robots _________ the place of human beings in many jobs. (take)
will have taken
By the time she comes back from New Zealand, she _________ in London for 10 years. (not live)
will not have been living
How long _______ you _______ here by the time you retire? (work)
How long will you have been working here by the time you retire?