It took the scientists seven days to________Takla Makan________“the sea of death”.

A.climb;calling                                                B.through;called

C.across;naming                                               D.cross;named

It took the scientists seven days to________Takla Makan________“the sea of death”.

1. A.
   climb;calling
2. B.
   through;called
3. C.
   across;naming
4. D.
   cross;named