单项选择题

—Hi, Tracy, you look tired.
—I am tired. I () the living-room all day.

A．painted
B．have been painting
C．had painted
D．have painted

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单项选择题
—Mr. Li, you have won half a million yuan, (). —Thank you.

A．Interesting.
B．Good luck.
C．Congratulations.
D．Hard to believ
单项选择题
You should take the medicine after you read the ().

A．lines
B．instructions
C．words
D．suggestions
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