160. It seemed that there was strange sound outside. We ________ carefully but_____nothing.
---Kevin, you look worried. Anything wrong ? ---Well, I _____ a test and I’m waiting for the result.
There was _____ time when everything to do with ____nature could keep Anne spellbound.
_____ impressed me was the boy’s ability to deal with this kind of difficult physics problem.
In no way should we hunt and kill antelopes. _____, everyone should make great efforts to protect them.
I saw Tom _____ into the classroom without _____.