Here are the best options to fill in the blanks in Rambabu Gupta's story:

1. (31) **C** to visit
2. (32) **C** riding
3. (33) **B** rode
4. (34) **D** for
5. (35) **A** but

So, the completed text would read:

"My name is Rambabu Gupta. I am from India. Last month, I had a motorbike accident in Thailand when I **to visit** this beautiful country. On my first day there, I rode a motorbike to a local market. It was my first time **riding** a motorbike. The road was narrow and bumpy. I hit a big rock in the middle of the road while I **rode** slowly. I lost control and fell off the motorbike. I felt hurt in my right arm. Luckily, a nice man came and took me to the hospital. The doctor said my arm was **for** a cast. I had to spend my other days in Thailand with a hanging arm. However, I felt lucky **but** I didn’t have to take surgery."