The river water will still be polluted _______ we find solutions to prevent dumping raw sewage.
after
until
so
because
Mass killings of fish can happen _______ there are sudden changes in water temperature.
before
when
till
while
We picked up all the rubbish at the campsite _______ we returned home.
before
till
after
while
Can you help me sort out the rubbish _______ I’m cleaning the kitchen?
although
until
while
if
Grace lost her mobile phone signal _______ she went deep into the forest.
but
as soon as
if
before
Don’t leave the water running _______ you’re washing the dishes!
since
while
as soon as
because
Many wild animals used to inhabit this area _______ the new factory was built.
before
as soon as
while
after
The panda will stay at the zoo ________ it’s strong enough to return to its natural habitat.
since
as soon as
until
after
_______ they realise the impact of deforesation, they’ll continue to cut down trees to provide more room for planting crops.
As soon as
After
Until
While
