题目内容：

My sister Jodie and I are always traveling for work．As jewelry designers, we need to go to a lot of shows．We can’t pack lightly and usually bring about four suitcases filled with our work．

Most of our stuff is made from heavy materials and metals．So part of the routine for us when we fly is getting stopped by security. Our jewelry sets off the alarms, and we’ve become accustomed to arriving early to go through private screenings. Most of the time, it’s not troublesome．

However, on our recent trip to a Paris trade show, we were stopped at security and asked to empty our bags．One of the agents walked over to another agent and they started whispering to each other．Both gentlemen came back, and one of them then told us that it seemed that we were carrying a very dangerous object．

My sister and I just said, “Huh?” Of course, we were a little concerned, thinking that maybe someone put something dangerous in one of our bags when we weren’t looking．

One of the agents then started to unpack our bags．I kept asking what he was looking for and then the object in question finally appeared．It was our Cosima necklace．It’s a piece of jewelry, with large, metal triangular spikes．

My sister and I looked at each other and breathed a huge sigh of relief．We started laughing and explained to the two male agents that it was just a necklace from our collection, not a weapon of mass destruction．They thought we were lying, and one agent kept repeating that he believed it was a weapon．

I tried to explain that we were jewelry designers going to a trade show, and this was simply a piece from our collection．But the agents didn’t buy it．Then a few women guards came over to assist．One of the women guards was holding an earring up to her ear and another was trying on a ring．Apparently, they liked our stuff．

It was only at this point that the male guards gave up．And I think they also got tired of listening to a bunch of women talk about jewelry．They let us through．

We took the names of the women agents and sent them a piece of jewelry when we got back to say thanks．

1.When the object in question finally appeared, the writer and her sister felt _______．

A. anxious    B. relieved

C. excited    D. frightened

2.The writer and her sister were stopped by the agents because ________．

A. their suitcases were too heavy

B. the agents wanted to play a joke on them

C. they were suspected to carry dangerous objects

D. the agents wanted to admire the jewelry inside the suitcases

3.The underlined word “buy” in Paragraph 7 probably means ________．

A. doubt    B. believe

C. purchase    D. understand

4.The writer sent the women agents a piece of jewelry in order to ________．

A. persuade them to buy her jewelry later

B. get help from them next time

C. show them her talent in designing jewelry

D. show them her appreciation for their assistance