It was a sunny afternoon. Sam and his sister Lily were helping Mom __（1）__ the room.

“Hey, Sam,” said Mom. “Would you please put these paper-toweltubes (纸巾内管) in the bin?” Sam looked at the tubes and something came to him. He asked “Could I use them to make a __（2）__?”“Great idea!” said Mom. “Do we have any other good recycling materials (可回收材料)?” asked Sam. “Come on. Let’s go and see what else we can find in __（3__ house,” said Mom.

Then, they walked around and kept __（4）__ “This box would be good,” Sam pointed out. “__（5）__ it’s full of books.” “I was going to put those books on the shelves (书架). Can you give me a __（6）__? Then you can have the box,” said Mom. “Sure, no problem!” said Sam ___（7）___ “Now I only need several more things.”Sam happily collected all his materials. He sat on the floor, cutting and gluing all afternoon.

“I like your robot,” said Lily. “Thanks. But his head is broken, and I can’t __（8）_ it,” said Sam.“Hmm,” said Lily. She came up with an idea. She ran away and ran right back with an old hat. “Remember this hat?” asked Lily. “I wore it when I was a baby. Now it’s too __（9）__ for me.” “Thanks, it’s perfect!” said Sam. “What do you think, Mr. Robot?”

“I love it,” said Mr. Robot, in a funny voice. “You are really good __（10）__ making things out of recycling materials.”

(1). A. fill upB. clean outC. build upD. find out

(2). A. boxB. bookC. robotD. plane

(3). A. ourB. yourC. theirD. its

(4). A. runningB. listeningC. cuttingD. searching

(5). A. BecauseB. ButC. SoD. Or

(6). A. penB. hatC. legD. hand

(7). A. sadlyB. carefullyC. angrilyD. excitedly

(8). A. seeB. findC. fixD. hit

(9). A. bigB. smallC. perfectD. new

(10). A. atB. toC. forD. with