A、At Leech’ s school. B、In the police station. C、On the phone. D、At Mrs.Smith’ s home. C根据男士说的前两句话可判断出他们是在打电话,因为公司机构等接电话一般都是先自报名

M:No. 11 Police Station. Can I help you?
W:Yes. It’s about my son Leech. He went to the school this morning but hasn’t been back yet and it’s 6 :00 p.m. now.
M:Just a moment, please. May I have his name?
W:Leech Smith, 112 Broadway.
M:Thank you. Now Mrs. Smith, what is the matter exactly?
W:Well, Leech left home at 7 o’clock this morning, but just now her teacher called me and asked why Leech didn’t go to school.
M:Do you think it’s possible that he went to friend’s home?
W:I don’t think so. I called her friends and our neighbors, but none of them had seen Leech today.
M:I see. Now, Let’s move to some details. How old is he?
W:10 years old. And he is 1.5 meters’ tall.
M:What’s he wearing?
W:A blue shirt, and white shoes, carrying a green school bag.
M:We’ll do our best to find him, Mrs. Smith. Please try not to worry.
Q17:Where does this conversation most probably take place?
Q18:How long has Leech been away from home?
Q19:What’s the color of Leech’s shirt? And what’s the color of his bag?