By the middle of the 21st century, the vast majority of the world's p-考呗网题库移动版

单选题 By the middle of the 21st century, the vast majority of the world's population __________ in cities rather than in
the country.

A．are living
B．will be living
C．have lived
D．will have lived

参考答案D

解析:

单选题 Reading is to the mind __________ food is to the body.

A．what
B．as
C．that
D．like

单选题 If it Professor Russel standing up for him, he would have had to leave.

A．hasn't been for
B．hadn't been for
C．was for
D．were for

单选题 Fat can change into muscle__________ muscle changes into fat.

A．any more than
B．no more than
C．no less than
D．much more than