What had previously prevented aid workersfrom combing the wreckage？A．The rain.B．The smoke.

Q： What contribution did you make to your current （previous) organization？（你对目前／从前的

Q： What contribution did you make to your current （previous) organization？（你对目前／从前的

What is the most important thing you learned form. your previous experience that you will

What has been the discussion topic of the previous meeting？A．A comparison between Dickenso

He told me that he ____ in Naples the previous year.A、has been workingB、has workedC、had

What is Stephen Schneider’s idea of preventing gl