In any unsafe situation, simply _________ the button and a highly-trained agent will get you the help you need.
| A． |
press |
B． |
to press |
C． |
pressing |
D． |
pressed |
During the meeting a young man cried out suddenly and threw his notebook at Ma Yingjiu, ________brought the room to disorder.
| A．this | B．it |
| C．and that | D．and which |
April 23 is stated as World Book Day, an important date for literature around the world, _______ Shakespeare was born and died.
| A．where | B．when |
| C．which | D．what |
We human beings should be very careful with what we do with nature, _____power is beyond our understanding.
| A．that | B．which |
| C．whose | D．where |
（）I found the lecture hard to follow because it ____ when I arrived.
| A．started | B．was starting |
| C．would start | D．had started |
I haven’t finished my report, but I promise I ______ it by the end of the week.
| A．will finish | B．have finished |
| C．will be finishing | D．will have finished |