Halloween is believed to be a day ______all the spirits come back to the world of the living, and we have the same day in China called “Guijie", the Day of Dead.
Some students use their cellphone ________ as a tool of entertainment.
There in Chongqing ________ great changes in climate this year.
—How much did they ________ for it?—I’m sorry I can’t remember ________, but I bought it at sale.
—Whom did she try to avoid meeting?—________ was a certain boy with the intention of marrying her.
I know the teacher ________ Mary when he spoke of a bright girl.