It was so ________ having to sing in public.

One of the great things about science is that it has taught us to be __________ about surface appearances. The world seems flat, but it is, in fact, round.

The door remained ____. I didn’t know where he had gone to .

(2009安徽安庆二模). --Do you think the weather is good enough for a picnic?--Yes. You can't hope for         day at this time of the year.

 Mary thought highly of the painting, but to Mr. Smith’s _____ eye, the painting was terrible.