1.
The main goal here is to test the ____ of this ____.
2.
Since porcelain is an extremely hard and ____ substance, it is used in dentistry to create ____ teeth.
3.
Fire-fighters are held in great ____ by society for saving the lives and ____ of others.
4.
___ travellers are used to delays at airports and usually await their flight ___ .
5.
____ analysis of many of the most famous paintings in European art ____ reveals them to be great imitations.
6.
By ____ the fossil remains of animals, palaeontologists can learn much about their ____.
7.
Cloth ____ , to be held in place by safety pins, were first mass ____ in 1887.
8.
Today's cars are ____ more ____ than they used to be.
9.
The Swiss ____ Jean Piaget proposed four ____ of child development.
10.
Operation Resolve is ____ on the causes of the disaster and what ____ on the day itself.