--How is your grandfather now?--Oh, he _______for two weeks.
Since a sharp fall of stockmarket (股市) many people have ________ making other investments (投资).
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.