1.The little boy asked his father to help to s the pencil.
答案:sharpen
2.In fact,his words have been c at the bottom of her heart.
答案:carved
3.Can you (计算)how much we will spend on the travel?
答案:calculate
4.Her mother is (体贴的)and we all like her.
答案:considerate
5.Maize (进化)from a wild grass in Mexico.
答案:evolved
