（题文）Beijing's new international airport ___________ into use in 2019 will serve

题干

（题文）Beijing's new international airport ___________ into use in 2019 will serve 72 million passengers annually.

A．being put	B．to be put
C．put	D．putting

上一题下一题 0.4难度单项选择更新时间:2018-10-01 09:16:35

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