Jack puts on his backpack（背包）and walks out of school to catch his bus home. His backpack is full of books. "Hey, Jack!”Carl says, running up to him. "My dad's doing the park clean up this weekend. Could you help out?"
"Um." Jack knows he doesn't have time to help, but he hates（讨厌）to say no. "I guess I can."
Jack gets onto the bus. He is going to have to stay up late(熬夜)tonight to do his homework so he can help Carl in the morning.
"Jack," Jane says, sitting down next to him. "I have to walk Mrs. Green's dogs this weekend. Do you think you could help me?"
"Um...I guess I can."
"Great!"
Jack's backpack feels even heavier(更重了)as he walks into the house.
"Haul day?" his mother asks.
"Hard weekend. I have to finish my homework, help Carl with the park clean-up, and he help Jane walk Mrs. Green's dogs."
"You agree（同意）to too many things this weekend." his mother says.
"I know, but Carl and Jane are my friends. I can't say 'no' to them. What should I do? "
"I'm happy you want to help your friends, but you need to have time for your things, too."
Jack knows she is right. "Maybe I can tell Carl that I can only help for two hours in the morning. And I can help Jane walk dogs early in the morning, but not at lunchtime or in the evening." Jack says. "Mom, do you think they'll be unhappy?"
"They're your friends. Tell them you, need time to finish your homework. They'll understand.(理解)."
He calls Carl and Jane and tell them the truth(真相). Then he turns to his mum. "They're fine with it. and they offer(提供)to help with my homework, too."
