下图漫画《如此上访》给公民的启示是①要勇于使用宪法和法律赋予自己的监督权②要有序参与政治生活，正确行使权利③要依法参与民主决策，坚持实事求是的原则④公民要坚持权利与义务相统一的原则
Oil prices have risen by 32 percent since the start of the year，________ a record US $57.65 a barrel on April 4.
He hurried to the booking office only ________ that all the tickets has been sold out.
—Can those ________ at the back of the classroom hear me? —No problem.
Reading is an experience quite different from watching TV; there are pictures ________ in your mind instead of before your eyes.
—The last one ________ pays the meal. —Agreed!
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