题目

“几处早莺争暖树，谁家新燕啄春泥”。这句诗主要描写了鸟的哪种繁殖行为？ A．求偶 B．交配 C．筑巢D．产卵 答案：C9. He is very ill. I am afraid he soon.   A. is going to die   B. is to die   C. dies   D. has been dead