阅读短文,从方框中选择适当的词并用其正确形式填空,使短文通顺,意思完整,每空限填一词,每词限用一次。
A
$\boxed{\mathrm{behind}\quad \mathrm{curious}\quad \mathrm{rather}\quad \mathrm{but}\quad \mathrm{they}\quad \mathrm{future}\quad \mathrm{make}\quad \mathrm{express}\quad \mathrm{an}\quad \mathrm{climb}\quad \mathrm{one}}$
Many of us have read the passage *The Mountain Carrier* (《挑山工》) and been deeply moved by the hard-working carriers. But now, these carriers have a new competitor—a robotic dog.
A few days ago, some 1. on Mount Tai met a robotic dog. It carried heavy things, up and down the mountain. A worker followed 2. it to make sure everything went well. This robotic dog could carry about 40 kilograms, 3. it walked with steady (平稳的) steps. The worker said that this was the dog's 4. time climbing Mount Tai and its first test.
Tourists were very 5. and asked more about the dog. They learnt that it was made to carry about 120 kilograms. In 6. , it will be used on Mount Tai to carry things or pick up rubbish.
Some people had 7. idea: since it could carry heavy things, why not use it to carry people? Riding on a robotic dog up the mountain would be 8. cool!
However, some people were worried and 9. their concerns (担忧). With the use of these robotic dogs, the mountain carriers might lose 10. jobs. What would happen to them if their way of 11. a living was taken away? This new technology brings both excitement and concerns. It's like having a new friend who can help, but also a reminder that change can be challenging.

1.climbers 2.behind 3.but 4.first 5.curious 6.future 7.an 8.rather 9.expressed 10.their 11.making