( ) 31.I often go to school ___.
A.by the bus B. by bus C. by a bus
( ) 32.Li Lei usually ___ to the park.
A. rides a bike B. ride a bike C. ridding a bike
( ) 33.Keep quiet! M y parents_____now.
A. is sleeping B. are sleeping C. sleeps
( ) 34.There___a pen,2 pencil and 3 rulers in the pencil-box.
A. am B. is C. are
