Walk ______ the river, then go ______ the trees, you can see a new zoo.
—____ your sister know Tom? —No, she ____.
—Hi, Lucy. Your skirt is very nice. —____
James is an English boy. He _____ from England.
—Is the boy in white clothes your friend, Kangkang?—No. ____ in black clothes is.
— Excuse me, but can I take the seat? — , young man. It’s for the elderly only.