The number of people present at the meeting ________ about 1000, a large number of whom ________ experts from abroad.
—What’s all that noise about outside? —Oh, I forgot to tell you. The road to the railway station ______.
We human beings should be very careful with what we do with nature, _____power is beyond our understanding.
Scientists are convinced ______ the positive effect of laughter ______ physical and mental health.
Everybody in the village likes Jack because he is good at ______ and telling jokes.
Kidswillbe______abouteverythingwhentheyreacha certainage.