[ Grammar ]
The Amazon rainforest, ______________ is considered the “lungs of the planet,” is crucial for our environment.
A. whom
B. which
C. who
D. that

Random Topics:
Adverbial Clause, Noun ClauseModals "Should"Modal Auxiliaries and Similar ExpressionsPast Continuous vs Past SimplePresent Simple Affirmative and NegativeIndefinite ArticlePast with ModalsAdverb of Frequency and Past Continuous TensePast Simple (Questions)Verbs and Subject Verb AgreementOther quiz:
Grammar › ViewNina doesn’t eat meat, ________ she does eat fish.
A. and
B. or
C. but
D. so
Linking Words and Conjunction › View
Name the conjunction in the sentence below.
“Do you know some of the differences between apes and monkeys?”
A. do
B. of
C. the
D. and
Past Tenses › ViewYou _ _ hard last week.
A. was working
B. were working
C. were worked
Countable & Noncountable Nouns › View
We are going to be late. There is too (…) traffic.
A. many
B. much
C. some
