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yesterday 2. Do you know why she ______ at home last night? A. isn’t B. wasn’t C. not D. not in 3. One of the girls ______ under the tree last night. A. was sitting B. are sitting C. is siting D. were siting 4. He went there ______ and ______there for three days. A. three days before, stay B. for three days, stay C. before three days, stayed D. three days ago, stayed 5. I couldn’t swim when I was young, she couldn’t, _______. A. too B. either C. also D./ 6. What did you_______ your vacations? A. think B. think of C. thought D. thought of 7. We will finish _______ the Olympic Park soon. A. build B. built C. building D. to build 8. It’s very nice _______ pictures for me. A. of you to take B. for you to take C. for you taking D. of you taking 9. Li Zicheng is a real person _______ history. A. in B. of the C. of D. in the 10. Do you think _______ difficult to read an English story? A. this B. that C. it D. its[ 11. _______ your help, I’ve caught up with my classmates. A. Because B. Thank for C. Thanks D. Thanks to 12. A group of_____ o