—Is your brother _______ TV?—No，he's _______ a book.
| A．watching，looking | B．watching，reading |
| C．looking，watching | D．watching，read |
—Is your brother _______ TV?—No，he's _______ a book.
| A．watching，looking | B．watching，reading |
| C．looking，watching | D．watching，read |
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