It's the second time that I __________ in Shanghai ! What great changes have taken place in Shang Hai. It is ten years since I __________ it last time.
—Could you tell me the way to ________ Johnsons,please? —Sorry,we don't have ________ Johnson here in the village.
________ material used for running tracks in schools across China may be ________ danger to children's health.
I sent a big bunch of flowers to the nurse as an ________ of thanks for her taking good care of my grandpa in the nursing home.
If you don't work hard,it will be of no ________ for others to help you.
Two of my friends are having their weddings on the same day,and I'm in a real ________ about which one to go to.