Supposing / Suppose (that) I don’t have a day off,what shall we do 这句话中,当用supposing时前半句是不是伴随情况状语,此时是否加that?当用suppose时是不是祈使句,此时是否加that?

Supposing / Suppose (that) I don’t have a day off,what shall we do 这句话中,当用supposing时前半句是不是伴随情况状语,此时是否加that?当用suppose时是不是祈使句,此时是否加that?
Supposing / Suppose (that) I don’t have a day off,what shall we do
这句话中,当用supposing时前半句是不是伴随情况状语,此时是否加that?当用suppose时是不是祈使句,此时是否加that?

Supposing / Suppose (that) I don’t have a day off,what shall we do 这句话中,当用supposing时前半句是不是伴随情况状语,此时是否加that?当用suppose时是不是祈使句,此时是否加that?
Supposing/suppose (that) = if 或着 on condition that 如果,只要
引导条件状语从句,如果把suppose 看成祈使句的话,无法使句子结构完整.