Nowadays many parents are trying to either prevent their children from failure, or protect them from the knowledge ________ they have failed.
The weather is not fine today. I think he is _________ to turn up , though.
At the railway station, the mother waved goodbye to her daughter until the train was _______.
We have no idea at all __________.
_______is certain ______ the Normans conquered England in 1066 and then English changed.
Many years of hard work_______ his great success in the development of this new type of material.