Questions 7 to 10 are based on the following conversation.
W：Good afternoon.This is Jane speakin9.How can I help you?
M：Hi.I arn calling in regards to a cell phone I bought from you a while back.I ain afraid there is something wrong with the mception signal on my hand phone.[7]I can't seem to get incoming and outgoing calls and it always gives me a busy signal.
W：[8]Could you tell me how long this has been happening? I ask that because it will likely tell me whether the problem is with your equipment or reception.
M：[B]A couple of days ago.Initially I thought it could be the hand phone’s problem but then I realized it was probably the receiver signal.
W：Please give me your number and l will check whether there is any problem on the line.
M：9988777.
W：Thank you.Please hold onto the line and l will get back to you in a minute·
M：Sure.
W：Sorry to keep you waitin9，Sir.I have checked your number and everything is fine.[9]It could be due to our line upgrading and sometimes it could affect certain mobile numbers Our apologies for your inconvenience.
M：How long do I have to wait before the signal returns to normal?
W：Well，another couple more days.I will give this feedback to our technician and [10] if the problem still exists after two days, please give us a call and we will help you to solve it.
M：Oh-[l0]but vou bet l will蚀one if I don't get this fixed soon.It’s not as if I call do without my cell phone for very long.
Keys：7.[A]8.[8]9.[B] l0.[A]