What happened to you yesterday evening? Why didn’t you finish your work?——____ the lights off, we could not continue our workAs a result, we had to leave

My father, together with some of his old friends, there already.　　

Here is an extra ticket for the art exhibition, whom would you rather __ with you,Mary or John?____

Where is your new home now—In the new developed zone But Idowntownfor five years

The system has been designed to give students quickand easytothe digital resources of the library.