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The river, ____ are covered with trees, is very long.

         A. which banks                    B. of which banks

         C. whose the banks                 D. the banks of which

The river, ____ are covered with trees, is very long.

   A. which banks                       B. of which banks

    C. whose the banks                 D. the banks of which

. The river, ____ are covered with trees, is very long.

    A. which banks                     B. of which banks

    C. whose the banks                 D. the banks of which

The river,____are covered with trees, is very long.

          A.which banks                        B.of which banks

          C.whose the banks                      D.the banks of which

The river ____are covered with trees is very long.

A which banks   B the banks of which   C whose the banks  D of which banks

The river ____are covered with trees is very long.

A which banks   B the banks of which   C whose the banks  D of which banks

The river ____are covered with trees is very long

A. which banks　　　　          B. of which banks

C. whose the banks　　           D. the banks of which

The river, ____ are covered with trees, is very long.

A. which banks　　 B. of which banks 　 C. whose the banks　 D. the banks of which

The river ________ are covered with trees is very long.

A. whose bank      B. of which banks  C. whose banks      D. the bank of which