It is required that in no case ________ our password.

Word has come ___ a 100-million-year-old dinosaur fossil was recently discovered on a mountain in Ningcheng County, Chifeng.                            

 It is the first time that you have come to China, _____?

_________ whether China’s post-90s generation is strawberry generation.

Although Fleming discovered Penicillin, it was over a decade ______ someone else turned it into the great drug of the 20th century.