While (walk) in the morning, I saw them playing.

While (walk) in the morning, I saw them playing.

A walk

B walked

C walking

D walks

Solution

Correct Answer: Option C

While এর পরে verb আসলে তার সাথে ing যুক্ত হয় ।সুতরাং শূন্যস্থানে walking বসবে ।