[ Grammar ]
We can prevent global warming by ____________.
A. Reducing pollution in urban areas.
B. Reduce pollution in urban areas.
C. Reduction pollution in urban areas.
D. Reduced pollution in urban areas.

Random Topics:
Tenses and OpinionsConditionals (0 - 1 - 2)Adjectives & AdverbsVerbs � Nouns � Adjectives - AdverbsBecause of & Inspite ofPresent Perfect and Past SimpleModals and Present TensesCoordinating ConjunctionAdverbial Clauses of Manner and ResultTypes of Simple SentencesOther quiz:
Subject Verb Agreement › ViewChoose the correct verb to complete the sentence
Neither the basket nor the apples _____ expensive.
A. was
B. were
C. being
Present Tenses › View
My aunt and uncle __________ in Nghe An Province.
A. living
B. live
C. lives
Object Pronouns › ViewThe cat ate all the food. He liked _______ .
A. you
B. it
C. they
Grammar › View
…….the stove when you have finished cooking.
A. Put off
B. Put out
C. Put
D. Put up with