They tried their best to resolve the residual

They regard ______ as their duty to provide the best service for their customers.A．thisB．w

All the team members tried their best. We lost the game, ______.A. howeverB. thereforeC

we will try our best to solve the residual

They tried their best to resolve the residual

we will try our best to solve the 【residual 】prob

They regard _________as their duty to provide the best service for their customers.