阅读理解。

Mrs Smith is the owner of a house. She keeps one room for herself and rents the other rooms. Sinceher house is near a college, many students want to rent her rooms.     Now Mrs Smith has to be careful about the use of the phone, water, and everything else, because she worries that the renters (租房人) will keep the bill (账) high. Last month's phone bill was very high. She wants to know if someone in the house makes long distance (长途) calls and doesn't tell her. So she decided to find out who it was.     She has waited behind the door for several nights. Just now she was glad to hear someone coming near the telephone desk. She couldn't hear what the person was saying, but she was sure it was a man's voice. 'Why does this person speak in such a low voice?' thought Mrs Smith. She decided that he was trying to hide something. She went to the room quickly so that she could catch the man right then.     But when she suddenly opened the door, she saw only the back of a man with his hand on the telephone desk. He was saying something in a low voice to a girl beside him. So Mrs Smith still doesn't know who made the phone bill very high.

1. Mrs Smith _________ a house of _________ rooms.

A. has; two B. rents; several C. has; several

2. Mrs Smith can _________ rent the rooms to others, for her house is near a college.

A. easily B. hardly C. only

3. Mrs Smith pays attention to the use of the phone, water and other things, because _________.

A. she worries someone often makes long distance calls B. she is afraid to pay more for the phone, water and other things C. she has paid more for the phone, water and other things

4. Mrs Smith waited behind the door to find out _________.

A. who made long distance calls B. who used more electricity C. who took the expensive things away

5. The man in the room _________ with a girl in a low voice.

A. was phoning B. was talking C. was singing