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  • Scientists are …………………………… to learn about the history of water on Mars.
Question 1:
Scientists are …………………………… to learn about the history of water on Mars.
A. eager
B. eagerly
Feedback Here eager is used as the complement of a verb of incomplete predication. Adverbs cannot be used like this.
C. eagerness

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General grammar exercise - Test 48 | Exercise follow Topic