(2012浙江卷) According to scientists, our mental abilities begin to______ from the age of 27 after reaching the highest level at 22.
My family and I __ our New Year’s Eve dinner when the news of the outbreak of the war __ over on the radio.
How can you ___ if you are not ___?
He ___ his leg when he __ in a football match against another school.
They have no idea at all___.
In summer, the temperature sometimes __ as high as 39℃