Q:

Direction: In the following question, sentences are given with blanks to be filled in with appropriate word(s). Four alternatives are suggested questions. Choose the correct alternative out of the four and indicate your choice for the correct answer.

The stewardess showed the passenger________

• 1
  when to start travelling
• 2
  where to land the plane
• 3
  how to fasten the seat belt
• 4
  how to judge the altitude of the plane