Fortune often knocks at the door, ______ the fool does not invite her in.

(单选题)At present, there are many instances ______ the governments (单选题)The New York Times, ______ world-famous newspaper, conducted (单选题)______ the price may be, they are prepared to pay it. (单选题)Elizabeth Barrett Browning, ______ remembered for her love p (单选题)The baby smiled when ______ saw ______ mother. (单选题)I hate it when she calls me at work. —I’m always too busy to (单选题)The building of an ecological civilization has entered a cri (单选题)The high-quality content of Cloud Music has reached massive (单选题)As Malcolm S. Forbes puts in, the first step toward success (单选题)When attending a trade negotiation, I did better, but still