Employees in a chemical factory should be given _____ training in safety.

(2013·东北育才中学月考) Prices of the houses in Chongqing are quite high, while those in Shenzhen are ________.

----How about your trip to Hainan?----It couldn’t have been _____. Sometimes I went swimming in the sea; sometimes I lay on the sand.

 I’m always ________ about what I say because careless remarks are likely to hurt others’ feelings.

 —Did you find out the time of the train to Miami? —Yes, the early train is _______ to leave at 5:30 a.m.