A.more fish | B.some people |
C.some batteries | D.the pollution |
A.They will eat part of it. |
B.They will stop working. |
C.They will tell people where it is |
D.They will take it out to the beach. |
A.For five hours. | B.For eight hours. |
C.For twelve hours. | D.For one day. |
A.14,500 | B.29,000 |
C.145,000 | D.1,450,000 |
A.The robot fish can eat anything in the water. |
B.The robot fish need to be opearted by people. |
C.The robot fish are 1.5 meters long and they look like sharks. |
D.The robot fish can go back to the beach when the batteries run down. |