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My father and his teacher talked a lot about the things and persons ___ they could remember.

What an important part the Internet_______ in our life! One can hardly imagine____ life would be like without it.

How are the kids spending their childhood? I can’t help recalling（回憶）that there was a time _______ we played happily and freely in the outside.

We are living in an age ______ we treasure very much, because it sees man’s rapid development.

I’ve become good friends with several of the students ___helped me in the English speech contest last year.

We went to see our teacher ___ husband lost his life in the earthquake.

Was it in the village ____we used to live _____ the accident happened?

To improve the quality of our products, we asked anyone ____________ had used the products for suggestions.

She brought with her three friends, none of         I had ever met before.

After graduation I’d like to find a job _______ I can use what I have learnt at school.