Q: What causes the sound when you crack (捏) your knuckles (指 节) and is it harmful?A: Cracking your.... The liquid contains carbon dioxide gas (CO) (二氧化碳). When you "crack" your knuckles, the space ……

this sentence: “Prices got so high, they couldn’t get any higher and the __________.” a) bubble has burst b) bubble has bursted c) balloon has bursted d) glass has broken3. If you already own ……

___________.a) a first-time owner b) a first-time buyerc) a new host d) a new buyer2. If you already own...: “Prices have got so high, they couldn’t get any higher and the __________.”a) bubble has burst b ……

already own a property but are planning to sell it and buy a new, better one, you are moving up... this sentence: “Prices have got so high, they couldn’t get any higher and the __________.”a) bubble has ……

the bestselling hip-hop album to the rarest living creature.Fun high-tech categories include most... readers how to go about setting their own world record, including contact information, guidelines ……

超级肥皂泡
This is the biggest bubble in the world. How many students are standing in it? 50! It's in Britain (英国). ……

, then selling it and buying better property.3. Correct answer: a) a) “bubble has burst” refers... quickly to an end.b) “bubble has bursted” is wrong. This verb form of “burst” doesn’t exist.c) “balloon ……

好大一个肥皂泡HOW big can a soap bubble (肥皂泡) be? German artist Hammou Bensalah made one that can hold 94 people. He made the bubble by slowly lifting a large ring. The bubble kept its shape (形状) for five ……

好大一个肥皂泡HOW big can a soap bubble (肥皂泡) be? German artist Hammou Bensalah recently made one that can hold 94 people. He made the bubble by slowly lifting a large ring. The bubble kept its shape (形状 ……

北极熊吹泡泡A POLAR bear is blowing (吹) a bubble. And he is doing it underwater! A doctor took the photo of the bear at a German zoo. Could you blow a bubble this big? ……

.Band-aids (创可贴)DO you use band-aids when you cut your finger? The first band-aid was made by American.... Other kinds of paper and plastic straws came later.Bubble gum (泡泡糖):BUBBLE gum was invented ……

on the stock market.What is a bubble(泡沫)?Suppose you don't run your lemonade stand well. But a rumor (谣言... to invest in your business.This is how a bubble develops. The value of a stock goes up when a large ……

is a bubble (泡沫)Suppose you don't run your newsstand well. But a rumor (传言) around your class starts... stock (股票) market prices from your parents. As the prices of Chinese stocks keep going up, many Chinese ……

It's time to pack away the woolens and let your skin breathe again. This spring's fashions have a few special touches you'll want to add to your wardrobe.ShrugsFeeling uneasy about your ……

1. Correct answer: b) 2. Correct answer: a)a) bubble has burst – This means that a period of time...) bubble has bursted - wrong. This form of the verb doesn’t exist.c) balloon has bursted - wrong ……