--Oh, must you? Stay a longer. It’s been such fun having you--__________. I’ve got an early start tomorrow morning.
It was ___she was about to go out ___the telephone rang.
---Who is making so much noise in the garden? --- ___ the children.
Were all three people in the car injured in the accident? No,___ only the two passengers who got hurt.
One day, _____,Newton saw an apple fall from a tree.
He made another wonderful discovery, _____ of great importance to science.