—He was nearly killed by a car once. —Oh, when was ______ exactly? —It was in 2009 ______ he was riding a bike on the drive-way.
. Playing with a cell phone, he suddenly ________ the teacher staring at him.
. She seemed ________ the book before, but she said she had never.
. ________ on the subject for half an hour, Liu Ying suddenly stopped.
. She offered me practical ________ with my research, for which I would appreciate for my whole life.
. “ Look at him! He behaved ________ nothing had happened”, said Mary.