The new laws___________reducing the heavy traffic have come into___________.

We met an old friend in London _________ our expectation Shewaved at us ________ the street when she saw us

He had a wonderful childhood, ________ with his mother to all corners of the world.[ ]

“ __________ your work and stop talking!” said the teacher in a serious tone.

No sooner ______ the room than we realized we to take our books.