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【題目】The world's population is increasing_________80 million every year.

【題目】—I'm interested in traveling. — _________.

【題目】—Don't _____hope. Everything will be over soon.

【題目】We must_________the policy to control the heavy traffic in the city.

【題目】Doctor Li, is there anything wrong with my eyes?— No,_________is OK.

【題目】— Have you ever been to Beijing?:Yes, last month I_________there.

【題目】________ I still make lots of mistakes, it doesn’t worry me as it used to be.

【題目】I ________ much better at speaking English since I started junior high school.

【題目】The farmers usually use___ to cut the wool off the sheep．

【題目】________ September 11, 2001, I arrived at my building on time as usual.