I took mathematics and physics because I think that ________ very important for me to make further research in this field.
A survey was carried out on the death rate of those who were infected by SARS, ________were surprising.
In recent years much more emphasis has been put______ developing the students productive skills.
_____ of water makes Death Valley a desert, but it is by no means devoid.
_____ their real economic situations, they got some relief fund from the government.
No matter how frequently _____ the works of Beethoven always attract a large number of people.