Many scientists have believed that there may be a _________of life on the Mar．
#5631
A
mark
B
signal
C
sigh
D
sign
推荐题目
The school advisers help you talk through your problem but they don’t give you any direct .
#6012
A
solution
B
target
C
measure
D
function
He was courage and unselfishness and gained his comrades_________.
#6800
A
respectable
B
respectful
C
respect
D
respects
----The 7:30 plane hasn’t turned up yet. ----It has gone off its to keep away from the sudden storm
#5659
A
journey
B
course
C
flight
D
direction
It’s a major for Obama and his national security team, to fulfill the goal once voiced by Obama’s predecessor, George W. Bush, to bring to justice the mastermind （设计者）of the 9-11 attacks.
#6211
A
anecdote
B
accomplishment
C
negotiate
D
campaign