[ Present Continuous Tense ]
She is worried because a lot of reefs are …….
A. Doing research
B. Cleaning
C. Dying

Random Topics:
Modal PerfectPast PerfectGrammar and PunctuationPhrase or ClausePossessive AdjectivesModal Verbs in ConditionalsGrammar: so and sucha, an, the, zero articleVerbal and Appositive PhrasesGerunds/InfinitivesOther quiz:
Compound Nouns and Compound Adjectives Questions › View“Editor-in-chief” is an example of:
A. Closed compound noun
B. Hyphenated compound noun
C. Open compound noun
D. Compound adjective
Adverbial Clauses › View
He tried to explain, so she refused to listen.
A. to explain
B. so
C. refused
D. to listen
Subject Verb Agreement › ViewClimate change ________ our planet in many ways.
A. impact
B. impacts
Vocabulary and Grammar › View
Choose the word that best completes the sentence: Her ability to ________ complex problems is highly valued in the team.
A. complicate
B. resolve
C. ignore
D. create
