I can't get ________ to his office. The line is busy.

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I've ________ all my pockets but I still can't find my key to my bike.

[　　]

John is leaving for London tomorrow and I will ________ him ________ at the airport.

[　　]

No progress was made in the trade talk as neither side would accept the conditions of ________.

[　　]

I don't like this pair of shoes. Can you show me ________ pair?

[　　]

Some are playing while ________ are studying.

[　　]

Mary is here, and where are ________?

[　　]

We have ________ 2000000 dollars ________ building the teaching building.

[　　]

This English book ________ me 20 yuan.

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The boy ________ all his money ________ the toy plane.

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