After chatting on QQ a long time, Mary looked up, ________ that it was 11:00 pm, long past her usual bedtime.
Many people are still in _____ habit of writing silly things in _____ public places.
What ______ public is concerned about is whether medical workers and scientists will be able to find for this new disease in a short time.
I smoke out of ____ habit, not for ____ pleasure; for I have been in the habit for twenty years.
The cakes are delicious. I’d like to have _______ third one as _______ second one I ate was too small.
In the market, vegetables are sold by _______ kilogram, I mean, by _______ weight.