. More than one-third of the Chinese in the United States live in California, _____ in San Francisco.
A. previously B. predominantly C practically D. permanently
I’m calling to ask for information about the position____ in the local TV news.
| A．advertising | B．advertised |
| C．having advertised | D．to advertise |
It has been proved ____ several new kinds of medicine____ a positive effect on the cure of H7N9.
| A．which，has | B．if, has |
| C．that, have | D．what, have |
It was the middle of the night_____ my father woke me up and told me to watch the football game.
| A．that | B．as |
| C．which | D．when |
—Is the chemistry experiment easy? —______. I’ll just do my best.
| A．I think so | B．Certainly |
| C．Not a little | D．Anything but |
The number 5.12 is a special number,__ ,I think, that will be remembered by Chinese people forever.
| A．what | B．it | C．which | D．one |