[ 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:
Temporal Conjunctions and Connectives › View“During” is an example of…
A. Temporal conjunction
B. Temporal connective
C. Preposition only
D. Coordinating conjunction
Conjunctions › View
Scarlet’s mother said to Robin that we should leave now __________ will catch the last bus.
A. unless
B. so that
C. even though
D. while
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
