Compared with 2 million tons last year, our coal output has increased _____three times; that is to say, our coal output has increased_____8 million tonsthis year.
The speaker spoke at the meeting for 2 hours without _____ his notes.
The well-known performer our Chinese fans often referred ______ at our school yesterday.
It remains _____ whether he will have qualification(资格) to play in the finals.
______ running, learning English also needs skills .
They are _____ little children ____ we can’t scold them. For they have tried their best.