It is not yet known how these huge stones were conveyed       a distance of 380 kilometres 3 000 years ago.

A. at              B. for            C. over            D. in

It is not yet known how these huge stones were conveyed______a distance of 380 kilometres 3 000 years ago.

1. A.
   at
2. B.
   for
3. C.
   over
4. D.
   in

It is not yet known how these huge stones were conveyed       a distance of 380 kilometres 3 000 years ago.

A. at              B. for            C. over            D. in

It is not yet known how these huge stones were conveyed       a distance of 380 kilometres 3 000 years ago.

It is not yet known how these huge stones were conveyed ______ a distance of 380 kilometers 3 000 years ago.

A. at　　　　　　　　　　　　　　　　   B.for　　　　　　　　　　　　    C.over　　　　　　　　　　　　  D.in