[ Grammar ]
The purpose of this study is _______ energy content in foods.
A. improvement for
B. the improving
C. improves
D. the improvement of
Select your answer:

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Grammar › ViewWhile I ______ a book, my phone suddenly ______.
A. was reading / rang
B. am reading / rings
C. read / is ringing
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Grammar › View
The spa’s indoor pool is beautifully landscaped with cascading waterfalls.
Cascading means…
___
A. pouring down in great amounts
B. full of liquid so bigger and rounder