问题

They are broadening the bridge to ________ the flow of traffic.[ ]

A: put off
B: speed up
C: turn on
D: work out

正确答案是：

同类题型

Only since they gave up that good chance＿＿＿ to show their invention again.

If you want to succeed, you have to it[ ]

I need time_____ my computer.

Mr Mason, who holds the office of chairman, has _____ heavy a work load that it is difficult for him to travel

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