Jack had feeling of excitement when hearing his article had been published in school magazine. A.the;a B.a;the C./;the D the;/
How many more decades will have to pass ____ scientists succeed in providing a cure for cancer?
--- Where will you start your work after graduation? --- Mmm, it’s not been decided yet.I _______ continue my study for a higher degree.
Many clothing manufacturers now substitute artificial silk _____ natural silk to cut down costs of production.
--- Where are you, Nancy? --- Here in the sitting room, _______ to Professor Smith.
Canada is a country ______ many different nationalities as well as one with foreign immigrants ______ the majority of its population.