All the rooms are air-conditional and beautifully decorated, thus_______ a warm and comfortable atmosphere.
It's always difficult being in a foreign country, _____if you don't speak the language.
_______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.