单选题—It is said that Kate failed in the finals. —______ she is sad these days.

单选题"When ______ again? When he ______ , I'll let you know."[A] will he come, will come[B] will he come, come[C] he comes, will come[D] will he come, comes

单选题You don't need to describe her. I ______her several times. A. had met B. have met C. met D. meet

单选题D On February 14th many people in the world celebrate an unusual holiday, St. Valentine's day, a special day for lovers. Valentines are cards, usually red and shaped like hearts, with messages of love written on them. Lovers send these cards to each other on that day, often without signing their names. The origin of this holiday is uncertain but according to one story it gets its name from a Christian named Valentine who lived in Rome during the 3rd century A.D.. His job was to perform marriages for Christian couples. Unfortunately the emperor of Rome didn't allow Christian marriages. So they had to be performed in secret. Finally Valentine was arrested and put into prison. While he was in prison he fell in love with the daughter of the prison guard. After one year the Emperor offered to release Valentine if he would stop performing Christian marriages. Valentine refused and so he was killed on February, 270 A.D.. Before he was killed Valentine sent a love letter to the daughter of the prison guard. He signed the letter "from your valentine". That was the first Valentine. Today tens of millions of people send and receive valentines on St. Valentine's Day. Whether it is an expensive heart-shaped box of chocolates from a secret admirer or a simple hand-made card from a child, a valentine is a very special message of love.

单选题The United Nations was ______ forty years ago and held a special conference in November 1985 to celebrate.

单选题Helen always comes home at weekends, ______ the country to the town.[A] preferring[B] to prefer[C] prefer[D] having preferred

单选题Why are American bills or paper money unlike that in many other countries?

单选题C First-time dog owners may encounter (遇到) many problems getting to know and train their bets. Sometimes a puppy (小狗), or even an older dog, will chew their fingers or bite them. Even in play, this can really hurt. Unfortunately, many bet owners tolerate (容忍) this in a young dog. However when the dog gets larger, it is not fun to be bitten by it. Training a dog fever to place his teeth on human skin or clothing is an important lesson. From now on, if you feel your dog's teeth while you are playing with him, say "ouch" in a loud voice and move away from him. He will soon learn that when he bites, you will not play with him any more. Another bad habit that many people tolerate in their pets is allowing them to bite and held on to clothing. Don't let your dog do this to you. When he does something you want him to do, praise him and tell him he's a good dog. You can also give him a treat at the same time he performs the good behavior. Eventually he will learn which kind of behavior is acceptable and which is not. Remember that reward is more effective than punishment, if you reward your dog when he does what you want him to, he will become very well behaved. Also remember that puppies need to chew on something. So give him a sock with a knot tied in it or an old shoe. If he chews the wrong thing, take it away while saying "No" and give him something he can chew. If dogs are trained well, they will truly be your friends for a lifetime.

单选题You ought to do ______ he tells you.

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单选题Why does the writer think rope skipping also does good to one's eyes?

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单选题Whydoesn'tthewomanhaveenoughmoneyathandtorentabiggerhouse?