[ 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:
Tenses › ViewA bomb scare ——————– a delay of the flight.
a) Caused
b) Cause
c) Was caused
d) Had caused
Vocabulary › View
Determine information about something
A. assess
B. complex
C. researchers
D. welfare
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