The work is so difficult that I don’t know _______ to do it.A. what B. how C. where
—How long have you known the doctor ? — he helped me three years ago.
—Never touch my computer while I’m away.— .
—Do you know the man was talking to our English teacher? —Yes. It’s Mr Baker, our maths teacher.
— Linda,I am very thirsty.—Let’s go to the nearest supermarket some drink, OK?
— it was yesterday because of the storm! —So it was!