单选题 By 1922, for example, Australia had ( ) than it had people.

单选题 Fresh air and good food are ( ) to the health.

单选题 Free medical treatment in this country covers sickness of mind as well as ( ) sicknesses.

单选题 At the party, we found that shy girl ( ) her mother all the time.

单选题 It would have been better to have concentrated on a few things rather than to ( ) so much as one time.

单选题 Plastic heart valves and other human“spare parts" have ( ) possible many recent developments in surgery.

单选题 The destruction of these treasures was a loss for mankind that no amount of money could ( ) .

单选题 This substance reacts ( ) as fast as the other one.

单选题 We enjoy seeing the glorious ( ) of the rising sun.