The post office is far here. ______ you can't go there _______ foot A. because; on B. so; by C. so; on
My sister is short, ______ I am tall.
—______ they have a new ruler? —No, they ______.
—What's this ______ English? —It's a book.
—What class in Jim in? —He is in ______.
The schoolbag is nice. But it isn't ______.