题目内容：

急 英语 非谓语动词的 谁给
（1）-My sister could't help jumping with joy at the news .
-Why not One can't imagine what it feels like__the first
prize.
A winning Bto win C win D having won
为什么 选B
（2） Recently ,a second-grader from Alcatraz become one of the youngest people ever__from Alcatraz to San Francisco.
A has swam B swimming Cto swim D swum
为什么选C