17．
There have been many changes in the ways of transport in Beijing in recent years．From 1996to 2000，the number of bicycles has （92）increasedby 40%，for it is convenient and a good form of exercise to ride a bicycle．Over 18，000 （93）moretaxis have appeared in 2000．More and more people like to take a taxi as they can save a lot of time and the （94）priceis reasonable．The number of private （私人的） cars is 51，000．It's three （95）timesas much as that in 1996．We can see people are getting rich and can afford to buy cars．The number of buses doesn't change much．Though it is （96）cheapto take a bus，they are slow，dirty and crowded．Something should be done to improve the situation of buses．
| cheap，increase，price，more，time |
16．
Thanksgiving Day is an American national day．It often（86）lasts for four days．Americans celebrate it on the （87）fourthThursday of November each year．It's a time for people to give （88）thanks to god．And it is a time for family members to get together．
Thanksgiving is like a warm meeting．On the eve of Thanksgiving，members of the family will drive and even fly home．The next day，they sit around the table，enjoying a traditional（传统的） dinner together．Roast turkey，（89）sweet potatoes and a pudding are always ready for the Thanksgiving dinner．
Thanksgiving Day is also a day for students to give thanks to （90）their parents and teachers who give them help and who love them very much．
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| thanks sweet their last four |
Thanksgiving is like a warm meeting．On the eve of Thanksgiving，members of the family will drive and even fly home．The next day，they sit around the table，enjoying a traditional（传统的） dinner together．Roast turkey，（89）sweet potatoes and a pudding are always ready for the Thanksgiving dinner．
Thanksgiving Day is also a day for students to give thanks to （90）their parents and teachers who give them help and who love them very much．