[ Grammar ]
_____ we don’t stop deforestation, a lot of species will lose their habitat.
A. Although
B. If
C. Which
D. Therefore

Random Topics:
TOEIC Grammar and Vocabulary ReviewFrequencyVerb PatternsApostrophe GrammarSubject and Verb AgreementAdverb or AdjectiveSecond Type ConditionalWill and Going toUnless If First ConditionalCompound Nouns and Compound Adjectives QuestionsOther quiz:
Tenses › ViewWe ____ dinner at 7 PM tonight.
A. have
B. had
C. will have
D. having
E. has
Phrasal Verbs › View
Jim (phoning his friend Roger): Hello, Roger. I’ve been trying to _____ to you for hours!
Roger: Sorry, Jim. I had to make a lot of calls this morning.
A. put through
B. get through
C. go through
D. hold through
Grammar › ViewShe always does her homework __________.
A. correct
B. correctly
Grammar › View
Lucas is never rude. He’s _________.
A. silly
B. brave
C. polite
D. serious