[ Pronoun ]
If everyone picked up a single piece of litter every day, _____ would discover that the planet would become a much cleaner place.
A. They
B. It
C. He/she

Random Topics:
Present / Future / Present Progressive / non Action VerbsEs and SState Verbs and Action VerbsCompound and Complex, ConditionalsRelative & Interrogative PronounsPast Simple TensesVocabulary and TensesGrammar (was, were, could, could not)Present Perfect ContinuousParts of Speech and GrammarOther quiz:
Apologizing › ViewWhich one is the expression of apologizing?
A. Please forgive me.
B. You save me.
C. Don’t mention it.
D. Sure. Anytime.
Although / Despite › View
They decided to go ahead with the picnic __________ the bad weather.
A. even though
B. although
C. in spite of
D. when
Conditional Sentences › ViewThe customers would eat sandwiches if they _______ soup.
A. had liked
B. liked
C. like
D. didn’t like
Adjectives › View
These grapes are quite _______compared with those I bought yesterday.
A. sweet
B. sweeter
C. sweetest
D. sweetly