When familiar guests meet each other, a greeting with a friendly smiling, nodding or shaking hands is usually a decent way to show your good manners.()

单项选择题What can David do if the goods do not meet the requirements()

单项选择题astute()

单项选择题Alice received an invitation from her boss,came as a surprise.( )A.itB.that ofC.whichD.he

单项选择题There are altogether fifty students in our class, twenty ( )are boys.A.of themB.of thoseC.of whomD.of whose

单项选择题which of the following books is written by geoffrey chaucer?A. The Canterbury Tales.B. Morte D Arthur.C. King Lear.D. Beowulf.

单项选择题When you ( ) the furniture, please tell me.A.will finish movingB.finished movingC.will have finished movingD.have finished moving

单项选择题( ) you nominate will be elected

单项选择题I visited Jiuzhaigou last autumn. Never in my lifeso beautiful a place like that.()A. I had seenB. did I seeC. had I seenD. I shall see

单项选择题Until last spring, Nia Parker and the other kids in her neighborhood commuted to school on Bus 59. But as fuel prices rose, the school district needed to find a way to cut its transportation costs. So the schools busing company redrew its route map, eliminating Nias bus altogether. Now Nia and her neighbors travel the half mile to school via a 'walking school bus' —a group of kids, supervised by an adult or two, who make the walk together. Like the rest of us, school districts are feeling pinched by rising fuel costs—and finding new way to adapt. The price of diesel fuel has gone up 34 percent in the past two years. For the typical American school district, bus bills total 5 percent of the budget. As administrators look to trim, busing is an inviting target, since it doesnt affect classroom instruction (or test scores). More than one third of American school administrators have eliminated bus stops or routes in order to stay within budget. Many parents are delighted to see their kids walking to school, partly because many did so themselves: according to a 1969 survey, nearly half of school kids walked or biked to school, compared with only 16 percent in 2001. Modern parents have been unwilling to let kids walk to school for fear of traffic, crime or simple bullying, but with organized adult supervision, those concerns have diminished. Schools and busing companies are finding other ways to save. In rural areas where busing is a must, some schools have even chosen four-day school weeks. Busing companies instruct drivers to eliminate extra stops from routes and to turn off the engine while idling. They are also using computer software to determine the most fuel-efficient routes, which arent always the shortest ones. There could be downsides, however, to the busing cutbacks. If every formerly bused student begins walking to school, its an environmental win—but if too many of their parents decide to drive them instead, the overall carbon footprint can grow. Replacing buses with many more parent-driven cars can also increase safety risks. A 2002 report concluded students are 13 times safer on a school bus than in a passenger car, since buses have fewer accidents and withstand them better due to their size. And some students complain about the long morning hikes, particularly when the route contains a really big hill.The 'walking school bus' ______.A．does not consume fuelB．aims to keep children fitC．seldom causes traffic jamsD．is popular with school kids

单项选择题Once you have finished the design, you may have a whole week.A.offB.downC.in D.up