[ Grammar and Vocabulary ]
Choose the best option to fill in the gap: Environmental changes in Antarctica __________ a drastic decline in the numbers of penguins.
A. have caused
B. have brought
C. have led to
D. have resulted from
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VocabularySubjective and Objective PronounState Verbs and Action VerbsVerb Forms and PrepositionsPast Simple, Past Continuous, Past PerfectNarrative, Past TensesModal VerbsTenses and Sentence Completiona, an, the, zero articleModals: Possibility, Necessity, ExpectationOther quiz:
Grammar › View____ good weather we have!
A. How
B. What
Subject Verb Agreement › View
The sun ___ (rise/rises) in the east.
A. rise
B. rises
Vocabulary › ViewAnother word for hardship is ________
A. sympathy
B. transportation
C. strength
D. difficulty
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We were _____ when we heard the news of the forest fires.
A. alarmed
B. alarming