（ ）----It is _________ ruler. ---- It is not __________ eraser.
A. /, an B. a; an C. the; the
相关试题
Sometimes walking is __________ than driving during the busy traffic time.
| A．fast | B．faster | C．slow | D．slower |
Mary is a student of___________.
| A．Jack mother | B．Jack’s mother | C．Jack mother’s | D．Jack’s mother’s |
What __________ useful book! And __________book is very interesting.
| A．an；a | B．a； a | C．a; the | D．an； the |
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