Plans have been proposed ______ the largest dam in the world to be built along the Congo river.
Don’t you think it essential that every resident of Nanjing __________ spare no effort to make contributions to Nanjing 2014 Youth Olympic Games?
—Jim managed to get into his house without the key._______?—I don't know. He might have asked someone for help.
If the coach had to choose between the two, he would say Lisa was ______.
— Oh , must you ? Stay a bit longer. It has been such ______ fun having you here. — Thanks. I’ve got______ early start tomorrow morning.
— No wonder you caught a cold. You _____ out last night without a coat. — I know how silly I was.