【正文】
o k__________ the park beautiful, we can grow more f____________. 4. Let’s p________ the r________ in the bin. 5. Where’s the h________ m________? 6. Don’t t________ a b________ skin on the g________. Please p________ it up. 四、翻譯句子 。 What __________ the streets __________ and __________? ―___ _______. ,它們能幫助凈化空氣