To our great__________ , grandmother's illness proved not to be as serious as we had feared.
_________we sleep together or apart is one of the biggest cultural differences, and only in western societies ______ the feeling that babies should sleep apart from their parents.
Is _________ 48 hours _________ the man-made satellite _________ is made in our country to orbit the planet around?
In no place other than Britain ____ experience four seasons in a single day.
_____ occurred to me that the murder happened ____ a rainy day.
It was ______ the old worker came that we______ the experiment.