Traffic congestion is a serious ______ that affects millions of commuters.
A. issue
B. measure
C. remedy
A. issue
Scientists are trying to ______ the mystery of black holes.
A. solve
B. mitigate
C. tackle
A. solve
If traffic is too heavy, building more bus lines could be one possible ______.
A. challenge
B. solution
C. obstacle
B. solution
Poor diet is a major ______ of heart disease.
A. reason
B. source
C. cause
C. cause
The new law had little ______ on reducing crime.
A. effect
B. issue
C. solution
A. effect
Homesickness is a common ______ during the first year abroad.
A. obstacle
B. difficulty
C. step
B. difficulty
The government must ______ the housing crisis by investing in affordable homes.
A. issue
B. solve
C. tackle
C. tackle
The school decided to take immediate ______ to improve student safety.
A. steps
B. obstacles
C. effects
A. steps
One important ______ for the delay was the heavy rain.
A. explanation
B. reason
C. cause
B. reason
Social media has a huge ______ on the way young people communicate.
A. challenge
B. outcome
C. impact
C. impact
Learning a new language can be an exciting ______ for students.
A. difficulty
B. obstacle
C. challenge
C. challenge
New safety regulations can help to ______ the risks associated with construction work.
A. address
B. tackle
C. mitigate
C. mitigate
One possible ______ is to introduce stricter traffic laws.
A. step
B. answer
C. solution
C. solution
Industrial waste was identified as the main ______ of river pollution.
A. source
B. contributor
C. cause
A. source
One negative ______ of overfishing is the depletion of marine species.
A. outcome
B. result
C. consequence
C. consequence
Corruption is a major ______ to economic development.
A. issue
B. obstacle
C. difficulty
B. obstacle
Leaders must decide whether to ______ the problem completely, reduce its impact, or just deal with it gradually.
A. mitigate
B. solve
C. alleviate
B. solve
The mayor outlined concrete ______ to deal with rising crime rates.
A. solutions
B. measures
C. steps
C. steps
Fast food is an important ______ to the rise in obesity rates.
A. cause
B. contributor
C. reason
B. contributor
The final ______ of the negotiation was a new trade agreement.
A. outcome
B. influence
C. effect
A. outcome