—What do you think of the 3-D printer?—It’s great although it still needs further .
Can you believe that in________a rich country there should be________many poor people?
—Jimmy didn’t finish his homework yesterday. —________.
My uncle has two pet dogs.But________of them is friendly to me.
—Where is the librarian? —She________to the bookshop.
—How many times________you________to Beijing this year? —Three times.