— ______ do you have the drawing lessons? The pictures you draw are so beautiful. — Once a week. I began having drawing lessons at the age of five.
A：How often
B：How much
C：How long
D：How many
渔船在岸上建造，为了便于在完工后推到海里，一小组同学讨论所用方法是：在船底适当的位置上安装钢轮，并铺设了通到海里的滑行轨道，若下水测试渔船及所装物品的总重力为2.8×107N，安装的全部钢轮与轨道的总接触面积为1.4m2，求渔船在水平轨道上时对轨道的压强是多大？
在公园散步时,你把书包落在长椅上了。书包里面有一本语文书、一本数学书、一本英语书和一些练习本,还有一个文具盒和一张学生卡,学生卡上面有你的姓名、班级、学校等信息,你的电话是282—9888。请根据以上信息写一则60词左右的寻物启事。
⑴____My parents and I go to Canada by plane．
⑵____I buy some presents for my friends．
⑶____I have a nice winter holiday．
⑷____We visit the zoo in Canada．
⑸____I like the sea and like swimming，too．
⑹____We have a good time in China．
