_____ PROBLEMS IN SAILING IN TROPICAL SEAS IS THE CORAL REEFS.(A) O...
6. _____ problems in sailing in tropical seas is the coral reefs.
(A) One of the biggest
(B) The biggest one
(C) Of the biggest one
(D) There are the biggest
6. _____ problems in sailing in tropical seas is the coral reefs.
(A) One of the biggest
(B) The biggest one
(C) Of the biggest one
(D) There are the biggest