68.What disturbs investors is the fact that the market has been fluctuating irrationally ______.

32.The research team has made all necessary preparations for the project to start and they are frustrated to learn that it is to be ______ indefinitely.

31.A central heating and cooling _____ produces warm or cool air in one central area and distributes it throughout the building.

30.The elderly landlady couldn’t ______ the behavior of the young man any more: he tossed trash all over the building.

29.It’s long been proven that we can ______ any project if we break it up into small pieces and do the project one piece at a time.

28.My storybooks _______ most of the space of my two bookshelves in my bedroom.

27.Thousands were forced to _______ to cities in search of job opportunities.

26.You may have already seen your dream house. Before you ______ an offer, you can do a few more things to ensure you purchase the right property for the right price.

25.The new law tries to maintain a balance between national interests and _______ rights.

24.As the outdoor concert attracted crowds of teenagers, the organizer made sure police and volunteers were ______ throughout the event, just in case.

23.As a Harry Potter fan, Emily felt ______ to visit the Elephant House, the cafe shop in Edinburgh where J.K. Rowling started writing the series.