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
As the saying goes, "When in Rome, do as the Romans do." So when we come to a new place, we should follow the __________ culture and customs.
A.natural B.national C.local.
The experts（专家）tried to make the Xi'an-Chengdu high-speed railway have the least __________ on the wild animals around.
A.traffic B.material C.influence
—Tom, can you answer the door? __________ is knocking the door.
—OK, Mom.
A.Somebody B.Anybody C.Nobody
