Question

31. I found it surprising to meet her by chance yesterday.
I was surprised
32. They cancelled all flights because of fog.
All flights
33. This building was built in the 1990s.
→ They built
34. I've never read such an interesting book before.
This is the most interesting
35. Although he was ill, he went to school yesterday.
Despite​

Answer 1

The modified forms of the sentences are given below.

Explanation:

• Some sentences are simple while some are the active and passive voice.
• I was surprised to meet her by chance yesterday.
• All flights were canceled due to fog.
• They built this building in the 1990s.
• This is the most interesting that I have ever read.
• Despite​ illness, he went to school yesterday.

Answer 2

Answer :-

The modified forms of the sentences are given below.

The modified forms of the sentences are given below.Explanation:

Some sentences are simple while some are the active and passive voice.

• I was surprised to meet her by chance yesterday.

• All flights were canceled due to fog.

• They built this building in the 1990s.

• This is the most interesting that I have ever read.

• Despite illness, he went to school yesterday.