—How long can I keep the books?
—_____
A. Three. B. Three times. C. Three days. D. Very often.
I study English, art, history and some _____ subjects.
A. another B. others C. the other D. other
（题文）—It’s time _____ supper.
—OK, Let’s _____ .
A. for; go B. for; to go C. for; going D. to; go
—What is Tom doing now?
—He is _____ at the moment.
A. sleep B. sleeps C. to sleep D. sleeping
— _____ do you go to the zoo with your brother?
—Once a month.
A. How B. How often C. How old D. How much
My brother usually _____ his classroom after school. But now he _____ soccer.
A. cleans; plays B. cleaning; playing
C. cleans; is playing D. cleans; is playing the
