—Stay a bit longer，please. It's been such ________fun having you here.
—Thank you，but I've got ________early start tomorrow morning.
A．/；the B．a；an C．/；an D．the；an
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I can't say which wine is best---it's a(n)_______of personal taste.
A. affair B. matter C. event D. variety
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Our journey was slow because the bus stopped at different villages________．
A. normally B. gradually
C. constantly D. regularly
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We will be free tomorrow，so I suggest ________to the history museum.
A．to visit B. visiting
C．we should visit D. a visit
难度: 中等查看答案及解析