Scientists have found no ________of life on Mars so far,though great efforts have made on the research.
#7179
A
symbols
B
signs
C
marks
D
signals
推荐题目
Much to my _____, the student has come to realize the importance of honesty.
#5794
A
horror
B
relief
C
sorrow
D
curiosity
If you haven’t got the service advertised on their website, then you have _____ to complain about it.
#5228
A
choice
B
purpose
C
right
D
reason
The scenery in my hometown is beautiful beyond ______.
#6556
A
communication
B
expression
C
situation
D
organization
These new books are a very welcome _________ to the school library.
#6138
A
addition
B
arrival
C
attitude
D
audience