There isn’t ______ in the classroom. Let’s turn off the lights.

The crossing was blocked by many trucks andbuses, made itimpossible for us to go to work on time.

We are working ______ to get the work done on time There is only one day left before it must be finished [ ]

_____these interruptions, the meeting would have finished earlier.[ ]

Few of them hurt themselves in the accident last night,______