A.supply free books withB.supplies free books toC.suppl……

单项选择题A new（）will be set up in this area so we will have enough electricity in the future.

A.power station
B.electricity station
C.power factory
D.electrical station

单项选择题There are many（）in China.

A.female sengineers
B.female sengineer
C.women engineers
D.woman engineers

单项选择题This rare bird has become（）

A.an endangered specie
B.endangered species
C.endangering species
D.an endangered species

单项选择题Is $50 equivalent（）about £30?

A.to
B.for
C.with
D.on

单项选择题I think this sofa is（）than that one.

A.expensiver
B.more costly
C.cost more
D.cos tlier