What is the most effective way to combine sentences 7 and 8? F. “Get under here!” the boy next to me shouted when he signaled me to duck under the backpack with him. G. “Get under here!” the boy next to me shouted, he signaled me to duck under the backpack with him. H. “Get under here!” the boy next to me shouted, but he signaled me to duck under the backpack with him. J. “Get under here!” the boy next to me shouted, signaling me to duck under the backpack with him.