1 .  Which one of the following is correct sentence?

• A. Many demonstrations have been made in recent years in protest against the level of pollution
• B. years in protest against the level of pollution
• C. Many demonstrations have arranged in recent years in protest against the level of pollution.
• D. Much demonstrations have been held in the recent years in protest against level of pollution.
• D. Many demonstrations have been upheld in recen years in protest against the level of pollution

Answer: Option B

Explanation:

2 .  Which one of the following is correct sentence?

• A. As I decided to learn English, I didn't know how difficult it would be
• B. As I decided to learn the English, I didn't know how difficult it would be
• C. When I decided to learn English, I didn't know how difficult it would be
• D. When I decided to learn the English, I didn't know how difficult it would be
• D. Although I decided to learn English, I didn't know how difficult it would be

Answer: Option C

Explanation: