We could not reason out the way the robbers escaped，because we were unable to find any ________ of them.
| A．chance | B．trace |
| C．point | D．signal |
Before the tourists set off , they spent much time setting a limit _____ the expenses of the trip.
| A．in | B．for | C．to | D．about |
The public transportation is very convenient in that big city , so there______be any difficulty in
traveling around .
| A．mustn’t | B．wouldn’t | C．shouldn’t | D．needn’t |
_____ is known to us is that the 2012 Olympic Games will take place in London．
| A．It | B．Which | C．As | D．What. |
---I’m afraid I can’t go to Jane’s party this Sunday night.
---Oh, _________. You promised.
| A．no problem | B．come on | C．no hurry | D．that’s Ok. |
_____, the great mother kept waiting for four hours in the heavy snow to save her sick child.
| A．It depends | B．Take it easy | C．It is OK | D．Believe it or not |