Has the conference about building a water-power plant come to an end?—No, it’s _______Experts just disagree on some issues
Hi, Mary, who is this girl——-She is my friend’s sister. _______ name is GinaGreen.
__________ it is from our own planet Earth to Mars!— Yes, it takes months to travel to Mars by spacecraft.
_________ is the centre of the city from here—- It’s_________.
Their carelessness ______ the failure. That is to say, the failure_____ their carelessness.