填入适当的介词。（8%）
（1）How many Art lessons do you have ________ a week?
（2）We have a Computer Studies lesson ________ Friday.
（3）Draw some flowers ________ the paper.
（4）She goes to school ________ seven o’clock.
（5）Can you come and help me ________ my Maths?
（6）Here’s a new copybook ________ Nancy.
（7）May I speak_______ Nancy?
（8）Boys and girls, this is the first day ________ the new term.
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