一It looks 1ike a kind of cat．What do you think?一Yes, I ________ ．

Here ______a set of keys and here ______my books.

 Mary wants to learn to study in England so she often practices_________ English with her friends.

--What's wrong with you, Dave?--My homework can't be       on time because I've left it at home.

 I really found it difficult to read, for his eyesight was beginning to________.