The shocking news made me realize__________ terrible problems we would face.
| A．what |
| B．how |
| C．that |
| D．why |
After the flood, all the emergency workersaround the clock in case the dam burst.
| A．set aside | B．stood by | C．put forward | D．came up |
—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 |
The country has already sent up three unmanned spacecraft, the most recent__at the end of last March.
| A．has been launched | B．having been launched | C．being launched | D．to be launched |
_____ for his action on the playing field ,but he is also famous for the things that he does off the playing field.
| A．Not he is only known | B．Not only is he known | C．Only is he known not | D．He is only not known |