[ Grammar ]
Sentence Structure: What is the subject in the following sentence: ‘The cat sat on the mat’?
A. The dog
B. Sat on the mat
C. The sun
D. The cat

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A. a
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Grammar › View
. Which sentence correctly uses “by + gerund”?
A. She lost weight by to exercise
B. She lost weight by exercising.
C. She lost weight by exercise.
D. She lost weight by exercises.
