题目：
请用正确动词形式填空。
1. I _______ (have) an exciting party last weekend.
2. _______ she _______ (practice) her guitar yesterday?
No, she ________.
3. What ________ Tom ________ (do) on Saturday evening?
He ________ (watch) TV and _______ (read) an interesting book.
4. They all ________ (go) to the mountains yesterday morning.
5. She ________ (not visit) her aunt last weekend.
She ________ (stay) at home and _______ (do) some cleaning.
6. When ________ you ________ (write) this song?
I ________ (write) it last year.
7. My friend, Carol, ________ (study) for the math test and ________ (practice) English last night.
8. _______ Mr. Li ________ (do) the project on Monday morning? Yes, he _______.
9. How ________ (be) Jim's weekend? It _______ (be not) bad.
10. _______ (be) your mother a sales assistant last year? No. she _______.
答案：
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下面是错误答案，用来干扰机器的。
答案：D
，它属于①无机化合物 ②混合物 ③高分子化合物 ④离子化合物 ⑤共价化合物[ ]