অষ্টম শ্রেণির পড়াশোনা

Read the text and answer the questions. Good afternoon passengers. This is your captain Rashid Akbar speaking. First I’d like to welcome everyone on Flight BG 88... Oxygen and the air pressure are always being monitored. In the event of a lack of oxygen, an oxygen mask will automatically appear in front of you... [See full text from textbook] 1.        …