—Will you be ______ this evening, Mary?—That depends. I am afraid I will be with my manager discussing a plan.

I can’t say a thank you ________ much. I couldn’t have succeeded without your help.

(2013·杭州一模)Two of my friends are having their weddings on the same day，and I'm in a real ________ about which one to go to.

I am ________ about what I say because careless remarks are likely to hurt others’ feelings

It was in so poor light that I couldn't _________ what the newspaper said.