[ Conjunctions and Preposition ]
Ways must be found to prevent the poisonous gases on / from polluting the air.
A. on
B. from

Random Topics:
Future Tenses and ModalsModals and TensesWould/would like - affirmative/negativeInfinitive and GerundsPronounciation and GrammarAdverbs and Time ExpressionsRelative Clauses PronounsConjunctions, Prepositions and InterjectionsPreposition and Preposition PhrasePassive SentencesOther quiz:
Vocabulary › ViewWhat is the meaning of prophecy?
A. large and sturdy
B. barren, uninhabited
C. attach and anchor
D. a foretelling or prediction of an event
Grammar Comma Usage › View
. In the sentence “Grandpa is a friendly generous man,” should there be a comma between “friendly” and “generous”?
A. Yes
B. No
C. Only if the adjectives are reversed
D. Only if the sentence is longer
Grammar › ViewLast but not least is the most ________ construction in Germany.
A. photographing
B. photographed
Grammar › View
Can you please get the book from the top shelf for me? I ___ reach it.
A. couldn’t
B. can’t
C. don’t have to
