It was the third time that I ________ of the changes of the timetable.
| A．had informed | B．have informed |
| C．had been informed | D．have been informed |
—How are the peace talks between the two countries?
—We are looking forward to hearing the final.
| A．competition | B．appeal | C．influence | D．outcome |
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 |