[ Sentence Structure and Punctuation ]
Choose the sentence that correctly uses a dash to indicate a sudden change in thought or tone.
A. I don’t know—I haven’t decided yet.
B. I don’t know I haven’t decided yet.
C. I don’t know, I haven’t decided yet.
D. I don’t know; I haven’t decided yet.

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Vocabulary and Grammar › ViewThe team proposed _________ (to enhance) the workflow by adopting new tools.
A. enhancing
B. to enhance
C. enhance
D. enhanced
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What is the synonym of the word “tired”?
A. Quickly
B. Fell
C. Crawling
D. Exhausted