15. It had been a trying afternoon, ...... at about six o’clock in the television
breaking down.
a. leading b. culminating c. arriving d. finalising
16. He has been work as a window cleaner even though he has no .......... for
heights.
a. head b. skill c. ability d. balance
17. Despite the high divorce rate, the ......... of marriage remains popular.
a. practice b. habit c. institution d. state
18. He clearly had no intention of doing any work, although it was only a week
.......... the exam.