A.essence
B.tendency
C.freight
D.target
Although the probe on Mars is not easy, America still insists it because
A.new technology and new ways are found to solve the problems
B.the probe can shed light on many big questions
C.the nations confidence can be strengthened through the probe
D.the nation has a restless desire to take on new challenges
She tried to probe my mind and discover what I was thinking.
A.solved
B.explored
C.involved
D.exploded