类风湿关节炎软骨与骨病变严重，x线改变常呈
A．水肿型
B．增生型
C．破坏型
D．创伤型
E．炎症型
参考答案：C
Nowadays, good babysitters are in great _____, so many companies have been set up to train good babysitters.[ ]
A. request
B. need
C. demand
D. requirement
用方框内所给词语的正确形式填空。
小题1:In spring, the _________ are very beautiful.
小题2:Would you like to take a _________ for me?
小题3:I’m very tired and I want to go to bed early ________.
小题4:The lost child is in ________ now.
小题5:I ________ with my best friend yesterday.
