Make full use of your time      you can achieve what you desire.

_______ impressed me was the boy’s ability to deal with this kind of difficult physics problem.

(2010·北京，27)Children who are not active or ________ diet is high in fat will gain weight quickly.

Russia’s cutting off the gas supply raised a major concern to the European Union, ______ a number of member states are increasingly dependent on one single supplier.

There is no student _______ wants to go to university.