We’ll have to work extra hours, for there are still some problems ____________ ．[ ]

This, I think, ___ the first time that we ___ traveling togetherWould you like to join us?

I’m still working on my project.— Hurry up, or you’ll miss the deadline. Time is_______________.

Did you hear about Zhang Lili who saved the kids from being run over by a school bus? — Yes. What do you think most people _____ if they were in a similar situation?

Remember off the light and don’t forget the door when you leave the room.