—Do you know that Mrs. Obama came to China with her mother and two daughters?—Yes. And it is their ______ visit to China.
I think ___is necessary ___ my 20-year-old daughter to have her own mobile.
—We’ll be back for our school’s ____anniversary ceremony(周年校庆).—I see. That means you’ll have a get-together with your classmates in_______ years.
I find this computer game ______ to play.
An old friend of my sister's always helps my brother and with English.
We could hear the frightened people's _____ in the accident.