【2014 甘肃白银】The zoo keeper is worried because the number of visitors _______ smaller and smaller.
You have just read the newspaper. Did you find____________ in it?
—What do you think of detective stories? —They are _______ than romantic stories.
—Show me your homework, Dave. —Sorry, Mrs Brown. I’ve _______ it at home.
It was ____ useful information that the company_____ much money on it.
________ our teacher is ill, ________ he still comes to our class to teach us.