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梯级演练·强技提能 Ⅰ. 单项填空 1. (2017·浙江高考)Your as a student will be excellent if you develop a habit of reflecting on how you learn. A. operation B. growth C. performance D. character 2. (2011·陕西高考)Some insects the colour of their surroundings to protect themselves. A. take in B. take off C. take on D. take out 3. (2017·三明模拟)Mr. Zhang is the best music teacher in our school, but he has hurt his left foot and cannottomorrow’s concert. A. take part B. play a part in C. participate as D. participate in 4. (2017·琼海模拟)In the factory, the helmets the workers wore variedcolor according to their different posts. A. fromB. inC. with D. alongside 5. (2017·上海模拟)Lucy has a great sense of humour and always keeps her colleagues with her stories. A. amused B. amusing C. to amuse D. to be amused 6. (2017·盐城模拟)The reasonhe explained to us washe overslept. A. why; that B. why; because C. that; because D. which; that 7. (2017·太原模拟)Can you think of some cases where drivers obviously | 
