There is a feeling in me _______ we’ll surely find a cure for Aids.
—Did you enjoy yourself last weekend, Tom?—Yes, as you know, ______ birthday party went on in _____ most pleasant atmosphere.
—Tony said he could fix my bicycle, but I really doubt it.—_______. He’s very good at this sort of thing.
This article may be some advice about how to _________ oneself in society.
The environmental problems in China may worsen if __________ unsolved.
_____ cleaning the doghouse was the last thing I wanted to do, I did it with all my efforts.