Potassium reacts with chlorine to produce the ionic compound potassium chloride: 2K（s)+Cl2（g)→2KCl（

He asked the waiter ________ the bill.

A.on

B.of

C.for

D.after

听力原文： Now, I want to tell you a story about a strange person whose name was not known to us. In fact, no one cares about his name but his strange behavior. He always went to the same beer house at the same time every day and asked for two glasses of beer. Then he drank them himself. After that, he would asked for another two glasses of beer and drank them the same way. One day the waiter in the beer house was too curious to hold her peace that she asked him, "Why do you always ask for two glasses of beer？ Why not get one big glass instead？" The person smiled and answered, "Because I don't like to drink alone. Two glasses mean that I drink with my friend, One glass is for me, and the other for him. "But a few days later the person came in and asked only for one glass of beer. "Oh," said the waiter, "is there anything wrong with your friend？ Has he died？" "Oh, no,"said the person. "He is very well. This glass of beer is just for him. But I have stopped drinking beer. My doctor does not want me to drink any more because it is dangerous for me."

What did the person do every day？

A．He drank a big glass of beer.

B．He went to the same beer house.

C．He drank with a different friend.

听力原文： Now, I want to tell you a story about a person who always went to the same beerhouse at the same time every day and asked for two glasses of beer. He drank them and then asked for two more. One day the waiter in the beerhouse said to him "Why do you always ask for two glasses of beer？ Why not get one big glass instead？" The person answered, "Because I don't like to drink alone. I drink with my friend. "But a few days later the person came in and asked only for one glass of beer. "Oh, "said the waiter, "bas your friend died？" "Oh, no, "said the person. "He is very well. This glass of beer is for him. But I have stopped drinking beer. My doctor does not want me to drink any more because it is dangerous for me."

What did the person do every day？

A．He drank a big glass of beer.

B．He went to the same beerhouse.

C．He drank with a different friend.

听力原文： Now, I want to tell you a story about a person who al- ways went to the same beerhouse at the same time every day and asked for two glasses of beer. He drank them and then asked for two more. One day the waiter in the beerhouse said to him, "Why do you always ask for two glasses of beer？ Why not get one big glass instead？" The person answered, "Because I don't like to drink alone. I drink with my friend." But a few days later the person came in and asked only for one glass of beer. "Oh," said the waiter, "has your friend died？" "Oh, no, "said the person." He is very well. This glass of beer is for him. But I have stopped drinking beer. My doctor does not want me to drink any more because it is dangerous for me."

What did the person do every day？

A．He drank a big glass of beer.

B．He went to the same beerhouse.

C．He drank with a different friend.

A．I will have a Coca Cola please

B．I’ll have a glass of water, thanks

C．Of course, no

D．Can I have a glass of pure orange juice please

A．the quantity of the water unchanged

B．the color of the water changed

C．the quantity of the water changed

D．the quantity of the water became more

A、drank a glass of water

B、went to hospital

C、ate an Indian meal

D、finished his homework

The water level showing in a boiler water gauge glass is usually () duringworking.

A.higher than the actual drum water level

B.equal to the actual drum water level

C.increasing due to steam condensation in the glass

D.lower than actual drum wafer level

Would you like ______ ,please？

A、two glass of water

B、two glasses of water

C、two glass of waters

D、two glasses of waters

(Would) you mind (give) me (a glass of) water and (some) aspirin？

A．Would

B．give

C．a glass of

D．some