Professor Smith, along with his assistants, _____ on the project day and night to meet the deadline.
The noise was so _____ that only those with excellent hearing were aware of it.
In my opinion, you can widen the _____ of these improvements through your active participation.
While typing, Helen has a habit of stopping _____ to give her long and flowing hair a smooth.
The lawyer was expected to _____ some proposals after reading all those documents.
_____ his knowledge of the mountainous country, John Smith was appointed as our guide.