Q5. Fill in any four of the following blanks choosing the most appropriate option from the ones given below. Write the answers in your answer- sheet against the correct blank number.

      Around 700 hundred passengers of Turkish Airlines had a harrowing time (a) ............. the carrier failed to (b) ................ its customers two days in a row that its fights (c) ..................... cancelled after heavy snowfall (d) ................... all operations at lstanbul airport. This incident (e) ................ a lot of inconvenience to the passengers.