12．下面你将听到一段独白，请根据你所听到的内容，用适当的单词补全下面五个句子，每空一词．独白读三遍． 16．Mr．Grey had a nice shop in the main street of atown． 17．Last month Mr．Grey's shop was broken into at nighttwice． 18．The police had still not caught the thief threeweekslater． 19．Mr．Greydecidedthat he would try to do something to catch the thief． 20．Mr．Grey put some verycheapnecklaces in front of the camera for the thief．
14．What happened to the birds when the girl left the cage's door open？ A．The two birds stayed in the cage． B．The two birds flew away． C．One of the birds flew out of the cage．
