Traveling/ airplane/ expensive than/ traveling by train

5. Traveling/ airplane/ expensive than/ traveling by train/.

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6. My father/ like/ travel/ summer/.

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7/ Pupils/ interested/ listen/ teachers telling/ funny story/ English class.

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8/.This book/ cheap/ that one.

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9. How / you/ go /school/ everyday?

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10. Viet Nam/ have/ a lot / tropical forests/.

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11. My little brother/ often/ watch television/ when he/ finish/ homework/.

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12. What/ longest river/ Viet Nam/?

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13. What/ you/ usually/ do/ recess?

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14. We/ often/ do/ experiments/ Physics class.

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15. How far/ it/ from/ your house/ school?

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