I'm tired out. I all afternoon and I don't seem to have finished anything.
----What’s that smell? ---- I don’t know, but ______ it is, it’s terrible!
We thought there were 35 students in the dining hall, ____, in fact, there were 40.
She is very ______ about her ugly appearance, so you shouldn’t stare at her.
I don’t think the experiment is ______ failure. At least we have gained ______ experience for future success.
She is a strong willed woman and not once in to any difficulty in her life.