100. Without their parents’ permission, they kept their marriage ________ until last year.
| A．in secret | B．secretly | C．secret | D．Secretary |
I think my friend Tony is _______to win the tennis game next Monday.
| A．likely | B．possible | C．probable | D．maybe |
______ was not until the early 20th century _____ the importance of his ideas was realized.
| A．What; that | B．It; that | C．That; so | D．It ;when |
The on-line diary blog is a cultural _____, perhaps as essential as usual books we read.
| A．network | B．phenomenon | C．competition | D．occupation |
Jackie made _____ possible for this family to have beautiful memories during hard time.
| A．it | B．this | C．that | D．what |
Only after he realized the significance of mastering two languages ______ English carefully.
| A．did he set about learning | B．did he set out learning |
| C．had he set about learning | D．had he set out learning |