_______useful the dictionary you gave me last week is!

is recorded in history, silkwormswere first raised by a woman in ______ is today Hebei Province

How soon will you start your journey—I’m not sure. I haven’t decided ______.

ms to some experts that 56com, youkucom and tudoucom _____ 90% of the videomarket in this area

Try to guess its meaning when you meet a new word. Don’t _____ your dictionary all the time.