[ Grammar ]
If we ______ a practical point of view, then the most important property of the rays is the production of physiological effects on the cells of the human organism.
A. are taking
B. take
C. takes
D. to take

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Grammar › ViewWhose bag is this? It’s ________
A. Mine
B. The mine
C. My
D. Of me
Grammar › View
You use ______ with Jobs
A. A / An
B. The
Present Tense › ViewShe _____ to England three times.
A. having been
B. has been
C. have been
D. had been
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Jenny is fond ____ kittens.
A. by
B. in
C. of
D. for
