the season changes. How often to clean a room depends on the purpose of the room and how frequently (频繁地) you use it. For example, the kitchen and bathroom get dirty quickly while the bedroom will need ……

the season changes. How often to clean a room depends on the purpose of the room and how frequently (频繁地) you use it. For example, the kitchen and bathroom get dirty quickly while the bedroom will need ……

it in your mouth when the air gets too dirty. The device has a filter cartridge (滤芯) inside that cleans... too dirty. The device has a filter cartridge (滤芯) inside that cleans the air you take in.  ……

Sometimes, cats lick you. It’s how they show their love. Just like a mother cat cleans her babies. ……

and the toothpaste. 3. Paul waters4 the lawn (草坪). But he soon gets wet5 and dirty. Paul gets tried ……

forgot to do it. A. don’t clean B. didn’t cleanA. don’t cleanB. didn’t cleanC. weren ……

gets wet5 and dirty. Paul gets tired. He yawns (打哈欠) and falls asleep in the living room. He has... the house with a broom (扫帚) and a mop (拖把).Have a go1. Why does Paul get wet and dirty ……

我的猫咪叫宝贝
Do you have a pet? I do! I have got a cat and I love him very much. I call him "Baby". Cats are clever animals. ……

't push dirty water around. It sucks up the water after it cleans.Sexy born actressSCARLETT Johansson ……

’s most important people and places.Where do old coins go?旧硬币去了哪里？The mint recycles old and dirty ……

get something in return.For example, kids won’t sweep the floor if they see it is dirty. But they will clean the floor if their parents reward them for it. “Every house is a team effort ……

大红狗春季大扫除
. But the windows are still dirty. So we wash the windows again.6. Daddy has to clean the yard. Clifford... and rubber toys. 8. Now both our houses areneatand clean. Clifford and I are both very happy.练一 ……

2014年，中国向污染“宣战”。THE sky is gray and the air smells strange. It’s another day of smog, and we think: “Is there a dome (穹顶) to protect us from the dirty air outside?”Yes, there is! The Western Academy ……

蛋蛋牙刷清洁器We use a toothbrush to clean our teeth. So how can we clean our toothbrush? Here is the toothbrush cleaner Zappi. You put your toothbrush in Zappi, press the button (按钮) and wait for a few ……

clean air. ……