Because of the recent bad weather,the work is several weeks behind ______.
#13148
A
situation
B
speed
C
insurance
D
schedule
推荐题目
The world’s population has grown by ______ it was in 1800.  
#14205
A
more than six times that
B
six times more than that
C
more than six times what
D
six times as many as
—How did she get infected?  —She _______ the viruses without any protection.
#12814
A
exposed to
B
had exposed to
C
was exposed to
D
been exposed to