You should make ______ a rule to leave things______ you can find them easily.
In the reading room, we found her_______at the desk, with her attention______on a book.
——Is there any possibility______you could pick me up at the airport? ——No problem.
________ of her happy childhood by the song, Grandma sang along with it in a soft voice.
The income of skilled workers went up. ________, unskilled workers saw their earnings fall.
I like getting up very early in summer. The morning air is so good _________.