Last year, the first made-in-China ballpoint pen tips（圆珠笔笔头）were _________ by Taiyuan Iron（铁）&Steel.
A.divided B.required C.produced
Xiongan New Area __________ being built as a green and smart city，and it plays an important role in China's development.
A.is known for B.is worried about C.is born with
—Have you had any ideas for our group project?
—Why not do a study on how to __________ the waste paper in our school?.
A.lay out B.look up C.deal with
It is reported that nearly one hundred thousand people visited the Great Wall during this National Day. ________, the Great Wall is one of the world's greatest places of interest.
A.All of a sudden B.Without doubt C.From time to time
Many people finally succeed only after they have __________ for many times.
A.failed B.remained C.mentioned
Nowadays Alipay and WeChat Pay are __________ used in China. Most people don't take money with them anymore when they go out.
A.exactly B.widely C.wisely
