Half of the books ________easy for the students to read．
| A．are | B．is | C．am | D．be |
Most of the children went to sleep.Why are you still________？
| A．awake | B．asleep | C．wake | D．sleep |
—Tony is six and he is_______his sister Jane.How old is Jane?—Three.
| A．twice as old as | B．two years older than |
| C．as old as | D．three years younger than |
The fastest plane made by the USA can fly 10，000 meters______ the sound per hour.
| A．less than | B．more than | C．faster than | D．slower than |
John Smith is_______of the two young men.
| A．tall | B．taller | C．the taller | D．the tallest |
My brother is_______than me.
| A．older three years | B．old three years |
| C．older three year | D．three years older |