单项选择题

I assume the construction of the new airport ____________ at the end of last year.

A．must complete
B．must be completed
C．must have been completed
D．must have completed
<上一题 目录 下一题>
热门 试题

单项选择题
The crime of the corrupt officials must be ____________ without any reserve.
A．exploded
B．explored
C．exposed
D．extended
单项选择题
The heating system in the hotel is very advanced, and its temperature can be controlled ____________.
A．automatically
B．artificially
C．manually
D．economically
相关试题