. Although their new factory building is still under ________ construction, we have already placed _______ order for 200 pairs of shoes.
One ought _____ for what one hasn’t done.
I didn’t see her in the meeting room this morning. She _____ at the meeting.
----Did you happen to see ____ black and ____ white cat? ----Is she missing? I told you to take care of her.
Apples are usually sold by ________ weight and eggs are sometimes sold by ________ dozen.
— Did you happen to see _______ black and _______ white cat? — Are they missing? I told you to take care of them.