Vocab 1
Vocab 2
Grammar
Vocab 3
Vocab 4
100

Industrial processes can ______ water supplies if proper precautions are not taken. 

a) purify

b) contaminate

c) enhance

d) beautify

contaminate

100

Attendance at the meeting is ______ for all employees.

  • a) option
  • b) compulsory
  • c) voluntary
  • d) elective

compulsory

100

Advances in technology are impressive ______ sometimes overwhelming.

a) and
b) but
c) or
d) so

but

100

Smoking can cause severe ______ problems.

  • a) digestive
  • b) respiratory
  • c) circulatory
  • d) muscular

respiratory

100

Cutting down rainforests can ______ the habitats of many species.

  • a) protect
  • b) endanger
  • c) safeguard
  • d) preserve

endanger

200

Cars ______ carbon dioxide as a result of fuel combustion.


  • a) absorb
  • b) emit
  • c) consume
  • d) preserve

 

emit

200

We need to finish this project by Friday, ______ sooner.

  • a) if not
  • b) but not
  • c) except
  • d) even so

if not

200

We can use renewable resources ______ rely on non-renewable ones.

a) and
b) but
c) or
d) so

or

200

He took a ______ job while searching for a long-term position.

  • a) temporary
  • b) permanent
  • c) stable
  • d) enduring

temporary

200

The long hours of work will ______ even the most energetic employees.

  • a) rejuvenate
  • b) exhaust
  • c) invigorate
  • d) refresh

exhaust

300

She ___________ all of her energy from running a marathon. 

  • a) energized
  • b) exhausted
  • c) refreshed
  • d) invigorated

exhausted

300

The town's economy relies heavily on ______ production.

  • a) agricultural
  • b) industrial
  • c) domestic
  • d) recreational

industrial

300

The factory needs to install ______ advanced technology ______ hire more skilled workers to meet the new regulations.

a) both...and
b) not only...but also
c) either...or
d) neither...nor

a) both...and
b) not only...but also

300

The school decided to ______ the student for repeated violations of the rules.

  • a) retain
  • b) expel
  • c) enroll
  • d) welcome

expel

300

Organizing the event will ______ a lot of planning and coordination.

  • a) exclude
  • b) avoid
  • c) involve
  • d) dismiss

involve

400

The company plans to ______ new products at its factory.

  • a) dismantle
  • b) manufacture
  • c) destroy
  • d) dissolve

manufacture

400

The power plant uses ______ energy to generate electricity. They have a large supply of uranium. 

  • a) solar
  • b) nuclear
  • c) wind
  • d) hydroelectric

nuclear

400

We can ______ implement stricter pollution controls ______ face increased fines and sanctions.

a) both...and
b) not only...but also
c) either...or
d) neither...nor

c) either...or

400

She was determined to ______ a device that could help reduce household energy consumption.

  • a) destroy
  • b) invent
  • c) ignore
  • d) dismantle

invent

400

Recycling can significantly reduce the amount of ______ produced by households.

  • a) wealth
  • b) water
  • c) waste
  • d) work

waste

500

______, we must ensure the safety of our employees.

  • a) Above all
  • b) Below average
  • c) Beneath it
  • d) Beyond reach

above all

500

Sally has found a ______ position at the company, so she is moving to Los Angeles. 

  • a) temporary
  • b) permanent
  • c) provisional
  • d) fleeting

permanent 

500

The environmental impact is carefully monitored ______ the project is being carried out to ensure compliance with local regulations.

a) where
b) wherever
c) anywhere
d) everywhere

where

500

Factories that ______ the river with toxic chemicals are violating environmental regulations.

  • a) purify
  • b) pollute
  • c) conserve
  • d) clean

pollute

500

She enjoyed the peaceful ______ of the countryside during her vacation.

  • a) island
  • b) resource
  • c) surroundings
  • d) project

surroundings