1 . Do you know when ---?

• A. DU was founded
• B. was DU founded
• C. had DU been founded
• D. DU founded

Answer: Option A

Explanation:

2 . Do you know............at night?

• A. how often the bus runs
• B. how often do the buses running
• C. how will buses run
• D. how often does the bus run

Answer: Option A

Explanation:

3 . Do you know _______ ?

• A. where does she come from
• B. from where does she come
• C. where from she comes
• D. where she comes from

Answer: Option D

Explanation: