David felt ________of the foolish thing he had done in the classroom.

As we all know, children are always ________ about everything fresh to them.

---I did really well in the examination, Li Ke.
---I did _________. I got full mark.

This is the ____ piano on which the composer created some of his greatest works.

They looked __________ at his burnt clothes and didn’t know __________ to do.

The necklace the woman bought is          , because it is made of glass.

----Must I finish the report tonight?
----It’s not ______. You can do it next week.

The general secretary stressed that what he had just said was only his _________view, not official intentions.

If you sleep less than seven hours, you are three times more       to catch a cold．

-- Are you happy with this laboratory?
-- Not a little. We can’t have ________.