You have to wear special clothing, a helmet and a life jacket ____ your raft gets turned upside down or sinks.
But _____,if we ignore pollution, we will suffer a lot from it because there will be many environmental problems.
When Edison was only a boy of thirteen, he earned a living, _____ newspapers in the street.
The ticket for the concert is in great need, so if you want one, please get in touch with us_____.
The noise of something next door early every morning made me unable to fall into sleep.
This crop doesn't do well in soils the one for which it has been specially developed,