问题
填空题
根据上下文意思补全短文，每空一词。
On Sunday morning, Bruce goes out 1 a picnic 2 his classmates. They take some food there.
Diana wants Bruce 3 sing a song with her, 4 he has no time. He 5 to cook. Frank and Clark 6
like to fly a kite, but they 7 to bring it. Wendy is a nice girl. She 8 water for them. 9 about Helen?
She calls their teacher, Miss Li. She asks 10 to come here.
答案
1. for 2. with 3. to 4. but 5. has 6. would/both 7. forget 8. carries 9. How/What 10. her
表示的是一种金属阳离子