I'm afraid he's more of a talker than a doer,which is __________ he never finishes anything.
________ work has been done to improve the people’s living standard.
He made another wonderful discovery , ____ of great importance to science.
Most villagers agree that horses are far more pleasant _______ than tractors, but they are less efficient.
—Well, Randy is not quite ready to make a decision yet. —So, ______, we have to wait, right?
The situation is very serious, even if the government tries to pretend ______.