.-Do you like to buy the product an advertisement______on TV?-Not really. I think it's better to look before we leap.
_______to take this adventure course will certainly learn a lot of useful skills.
We decided not to climb the mountains because it was raining________.
The pianos in the other shop will be ________, but ________.
John plays football ________, if not better than, David.
Which is ________ country, Canada or Australia? (NMET1992)