I walked in our garden, ______ Tom and Jim were tying a big sign onto one of the trees

1. A.
   which
2. B.
   when
3. C.
   where
4. D.
   that

I walked in our garden, _______ Tom and Jim were tying a big sign onto one of the trees.

A. which B. when?

C. where D. that?

I walked in our garden, _______ Tom and Jim were tying a big sign onto one of the trees.

       A．which      B．when       C．where      D．that

I walked in our garden, ______ Tom and Jim were tying a big sign onto one of the trees.

A. which                      B. when                       C. where                     D. that

I walked in our garden, ________Tom and Jim were tying a big sign onto one of the trees.

A. which             B. when            C. where                    D. that