—How are your recent trip to Sichuan?—I’ve never had     one before.

 No one imagined that the apparently _____ businessman was really a criminal.

As we know, Jean is a       investor（投资者）who studies the market before he buys things. 

The reference she made to her friend, the poet, was interesting but too _____ for anyone to appreciate.

下面       组中的字母顺序前后是正确的。