单项选择题
—What's the matter with you —After the long walk, my leg （）and I couldn't go any further.
A. gave out B. gave off C. gave in D. gave up
单项选择题 Friendship helps us understand （）we are, （）we need each other and （）we can do for each other.
单项选择题 I'd like to live somewhere （）the sun shines all year long,
单项选择题 I （）to go for a walk, but someone called and I couldn't get away.
