Books are a worthy invention of human history since they make it possible for us to make a__of human's thoughts.
| A．plan | B．sign | C．point | D．record |
_____ by the latest electronic toys, the little boy stood in front of the windows, without moving.
| A．To be arrested | B．Arrested | C．Having arrested | D．Arresting |
It seems that living green is ________ easy and affordable. A small step makes a big difference.
| A．exactly | B．fortunately | C．surprisingly | D．hardly |
A housing bubble is an economic situation _____ occurs when house prices rise much too fast.
| A．which | B．where | C．what | D．why |
—Don’t be so naughty! Be your ________.
—Got it，mum.
| A．manners | B．age | C．behavior | D．politeness |
—“Crash diets” make us lose weight fast and I am all into that.
—But it_______better to work out.
| A．had | B．would be | C．wouldn’t have been | D．must have been |