[ Verb Tenses and Modals ]
“Trees do not only prevent flooding, they also produce cleaner air ___ of the oxygen they produce.”
A. when
B. because
C. as well as
D. If

Random Topics:
Present Simple: affirmative, negative, interrogativeActive Voice-Present tenseSimple Past Irregular & NegativeMixed Present TensesPrepositions and ConjunctionsAdjectives & PrepositionLinking Verbs and TensesRequest with Modal VerbsThere is, There are, Some, AnySo or SuchOther quiz:
Compound Words and Sentences › ViewJuan sat with another ______ on the bench before the game.
A. team-mate
B. teammate
C. team mate
D. teammates
Phrasal Verbs › View
They often take advantage _ the boss’s absence and go home early.
A. in
B. on
C. at
D. of
Finite and Non-Finite Verb › ViewI can’t wait _______ her again.
A. see
B. to see
C. seeing
D. seen
Grammar › View
Choose the correct answer.
Ann didn’t come to my birthday party ________ it rained heavily.
_
A. so
B. and
C. because
D. although
