The Canadian dollar strengthened against the greenback on Wednesday, and the yield on benchmark government debt slipped. The loonie was trading 0.5% higher at C$1.3691 to the greenback, or 73.04 U.S. cents, after trading in a range of 1.3685 to 1.376. Canadian government 10-year bond yields fell 1.9 basis points to 3.461%. The yield on similar U.S. government benchmark debt fell to 4.2946%. U.S. July crude futures rose $1.23 to $79.13 a barrel on Wednesday.