[ Linking Verb ]
………energy sources like coal and oil contribute to environmental pollution.
A. Computer-controlled
B. Eco-friendly
C. Renewable
D. Non-renewable

Random Topics:
Adverbs or Adjectivesanother/the others/each other/one anotherZero and First ConditionalsConjunctionsAsking & Giving AttentionIf Conditionals“Put” Phrasal Verb3rd Person SingularPast Simple and Past ContinuousTime Clauses of FutureOther quiz:
Tenses: Present simple, Past Simple, Future Simple › ViewWe often … to the cinema on Sundays.
A. go
B. will go
C. went
Grammar › View
________the complicated development of the covid-19 pandemic, lots of schools in Hanoi were forced to close.
A. Due to
B. Although
C. In spite of
D. Because
English Article › ViewJoanna wants to buy ___ umbrella.
A. a
B. an
C. the
Vocabulary › View
The country has a lot of ___ you can see many farms when you go there.
A. estimate
B. grassland
C. farmlands
