If you don’t know how to use the word, you should _________ in a dictionary.

—Is the boy in white clothes your friend, Kangkang? —No. ____ in black clothes is.

The apples on this tree are bigger than        on that one.

–Are these your rulers? – Yes, ________.

Have you got any books on English grammar? I want to borrow______.Yes, here you are. But you must return it by Friday.