单项选择题
I'd like to live somewhere （）the sun shines all year long,
A．which B．that C. where D. in which
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 （）to go for a walk, but someone called and I couldn't get away.
单项选择题 One day Chuck is on a flight （）the Pacific Ocean suddenly （）his plane crashed.
