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【題目】—Is this _________ ruler?

【題目】Don't eat so (quick). We have enough time.

【題目】 In those days bikes were not ______ used because few people could afford (負擔起) to buy one.

【題目】--- I hit a tree on the way to meet my friend at the railway station.

【題目】 --- Could you tell me how to get to Xuzhou Station，please？

【題目】Little Jerry (brush) his teeth every morning.

【題目】I think I want to join the (swim) club.

【題目】Susan has the flu. She go to the doctor.

【題目】It's necessary for us to learn ________ each other.