多选题 Since the foreign correspondent was accustomed to completing his assignments under ______ conditions, the commotion of the subway at rush hour presented no ______ his creativity.

A、 tumultuous
B、 flagrant
C、 tranquil
D、 inspiration for
E、 boon for
F、 obstruction to

【正确答案】 A、F

【答案解析】[解析] ●Since表示因果，前后同义重复。
●第一空填入rush(忙碌)的同义词。tumultuous骚乱的，flagrant明显的(坏的)，tranquil宁静的。答案选A。
●第二空填入accustomed to(习惯于)的反义词(有no否定)，inspiration for鼓舞，boon for恩惠，obstruction to妨碍。答案选F。