Rewrite as a question: "The scientists have been looking into the cause."
Have the scientists been looking into the cause?
The village has ___ out of clean water twice this month.
run
Someone will have to ___ for the damage to the forest.
answer
If we don't act, plastic pollution could ___ out several species.
wipe
It's hard to ___ across how urgent this is.
get
The council is asking people to ___ down on car use.
cut
If people don't ___ down on plastic use...
cut
The government ___ down on fishing in that area last year.
cut
Weeds have completely ___ over the old garden.
taken
Scientists ___ into the cause of the wildfire right now.
are looking
...more animals will ___ out.
die
...or are they still ___ing over the situation?
looking
Has the town ___ out of water yet?
run
Last week, volunteers ___ up the whole beach.
cleaned
This species almost ___ out in the 1990s.
died
The factory ___ a lot of smoke every day.
gives off
Yesterday, hikers ___ a bear near the river.
came across