Exercise 1: The Science Fair Project

Instructions: Fill in the blanks with the correct form of the verb in brackets.

(Simple Present Tense, Present Continuous Tense, Simple Past Tense, Simple Future Tense, Present Perfect Tense, Past Perfect Tense)

Last week, our science teacher, Mr. Lin, (1) _______________ (announce) the annual science fair. Right now, my friend, Amy, and I (2) _______________ (work) on our project about renewable energy in Taiwan. We (3) _______________ (not decide) on a specific topic yet, but we hope we (4) _______________ (make) a decision by the end of the day.

Yesterday, a list of approved topics (5) _______________ (give) to us by Mr. Lin. If we (6) _______________ (choose) the topic of wind power, we (7) _______________ (visit) the wind turbines in Hsinchu next weekend. My dad is an engineer, and he promised, “If you need any help, I (8) _______________ (be) there for you."

“(9) _______________ you ever _______________ (build) a model turbine before?" Amy asked me this morning. I told her I hadn’t. I think this project will be challenging. By this time next month, we (10) _______________ (present) our findings to the entire school. I hope everything (11) _______________ (go) smoothly. If I (12) _______________ (know) it would be this much work, I might have chosen an easier subject!