______ the Atlantic Ocean crosses the equator, the trade winds cause a flow of water to the west.

A. That       B. When        C. Where       D. Though

_______ the Atlantic Ocean crosses the equator, the trade winds cause a flow of water to the west.

A. That B. When?

C. Where D. Though?

______ the Atlantic Ocean crosses the equator, the trade winds cause a flow of water to the west.

A. That　　　 B. When 　　　 C. Where　　　 D. Though

______ the Atlantic Ocean crosses the equator, the trade winds cause a flow of water to the west.

A. That　　　 B. When 　　　 C. Where　　　 D. Though

______ the Atlantic Ocean crosses the equator, the trade winds cause a flow of water to the west.

1. A.
   That
2. B.
   When
3. C.
   Where
4. D.
   Though