单项选择题
Harry（）his pants at the seams (接缝) when he bent over.
A.sliced B.split C.cracked D.broke
单项选择题 There would be about 10 million other planets in the universe that could physically（）the earth.
单项选择题 He went ahead（）all warnings about the danger of his mission.
单项选择题 I have made（）mistakes in my writing so that I can ask my students to find and correct them.
