Last evening, I decided to go for a jog. As I was ___1___ my warm-up exercises, I heard a familiar voice ___2___ my name.

"Hi, Mabel ! I didn't expect to see you ___3___ ," the voice said. I turned around. ___4___ was my classmate, Judy. When she heard I was going jogging, she asked me ___5___ she could come along. I declined at once ___6___ Judy was an excellent runner and had ___7___ the school in many competitions. I told her she would probably run circles around me. However, she still insisted ___8___ joining me.

We started running round the track. ___9___ running for about four hundred metres, I was already ___10___ of breath. I had not been exercising for many weeks and my stamina was ___11___ . Judy, in contrast, ran effortlessly ___12___ my side. She ___13___ a pitying glance at me and said :

"We could go at a slower pace if you like."

"Hah ! You think I cannot ___14___ p with you ?" I said contemptuously.

I then spent the next few minutes ___15___ to prove myself right. After two laps around the track, I could not stand it any ___16___ . I came to ___17___ abrupt halt. Panting heavily, I asked Judy to continue ___18___ me.

She ran six more laps. i was amazed by the sheer ___19___ of energy she had. Looking at her, I was ___20___ to go jogging more often to improve my stamina.