―I want to be a doctor.
―Doctors greatly in every part of the world, I think.[ ]
A. need
B. are needed
C. are needing
D. will need
答案:B
―I want to be a doctor.
―Doctors greatly in every part of the world, I think.[ ]
A. need
B. are needed
C. are needing
D. will need
答案:B