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　　________ you ________ your classroom yesterday?

[　　]

　　I'm going to travel ________.

[　　]

　　A. a place interesting

　　B. a interesting place

　　C. somewhere interesting

　　D. interesting somewhere

　　What is he going to do when he ________ some money?

[　　]

　　An ________ must take ________ lessons.

[　　]

　　He's going to ________ an engineer when he ________ up.

[　　]

　　He could hum songs and difficult ________.

[　　]

　　A. piece of musics

　　B. pieces of musics

　　C. piece of music

　　D. pieces of music

　　What did you ________ at university?

[　　]

　　That's great for you to receive ________.

[　　]

　　You are never ________ young ________ start doing things.

[　　]

　　Classes were over. The pupils stopped ________.

[　　]