They were busy ________ an experiment when I came.
A．doing B．to be doing C．with doing D．to do
“Harry Potter” is said ______ into over twelve languages by the end of last year.
A．to be translated B．being translated
C．having been translated D．to have been translated
From his ____ look, I knew that the questions during the interview were ______.
A．puzzling; puzzled B．puzzled; puzzling
C．puzzling; puzzling D．puzzled; puzzled
—You forgot your purse when you went out.
—Good heavens, ________.
A．so did I B．so I did C．I did so D．I so did
After her time in hospital, Jenny's parents are afraid she has _____ in her lessons.
A．fallen behind B．fallen down C．fallen back D．fallen off
—Look, John‘s fallen asleep at work!
—Oh, he must have ________ late last night.
A．waken up B．put up C．taken up D．stayed up
