[ Grammar ]
What is the part of speech of the word “because” in the sentence “I am tired because I worked late”?
A. noun
B. verb
C. adjective
D. conjunction

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Grammar › View………………… see the doctor, please ?
A. Am I able to
B. Could I
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Cindy is buying a ticket at the counter. After buying ___ ticket, she waits for the bus.
A. a
B. an
C. the
D. –