A:CH3CH2CH2CH2CH3
B:
C:
D:
⑴ ____
⑵ ____
⑶ ____
⑷ ____
⑸ ____
A. The car is on the box.
B. Look, the bus is in my bag.
C. —Mom, where is my ball?
—Look, It's under the chair.
D. —Excuse me, Amy. Can I use your pencil?
—No problem.
E. Where are my pants?
根据课文《小马过河》内容填空
老牛说:“水很____,刚没小腿,能____过去。”
计算:(12y﹣x)2= ____ .