A verb that expresses a command, preference, strong request, or condition contrary to fact represents the _______________ mood of a verb. ?

In which of the following types of boilers do combustion gases pass through tubes immersed in circulating water, which is then converted to steam?

A. Tri-tube B. Uni-tube C. Fire-tube D. Water-tube

Interest rates can be higher with ________, which can be purchased at a local bank

Fill in the blank(s) with correct word