We must apply our minds to ________a solution.
—— Hi, Tracy. Would you like to go to the cinema tonight?—— ________, James, but I have to work.
Having come to study in England, Wang Li had difficulty ______ the new environment.
I would appreciate _______ you could give me some advice on TOFEL test.
— Tom looks nervous.— So you if you had so fierce a competition.
Bob Geldof, who organized Live Aid, ______ to raise money for the famine and it ______ to be a great success.