–Why, David, you look so tired! –Well, I ______ a report for the whole day and I must finish it tomorrow.
I smell something __________ in the kitchen. Can I call you back in a minute?
We all know that, __________, the situation will get worse.
—Have you known Dr. Jackson for a long time?—Yes, since she ______ the Chinese Society.
I like getting up very early in summer. The morning air is so good ______.
The lawyer rarely wears anything other than jeans and a T-shirt ______ the season.