题目：
用所给词的适当形式填空。（10分）
小题1:There __________(be) twelve girls in my class.
小题2:My parents often talk with their friends in the ___________(live) room.
小题3:The centre of the town is a good place ___________(shop).
小题4:Mr. Smith goes ____________(jog) every morning.
小题5:There are about 300 ____________(family) in the town.
小题6:March 8 is _____________(woman) Day.
小题7:Thanks for _________(you) video.
小题8:They ___________(fly) to Tokyo next week.
小题9:Why don’t you__________(go) shopping this weekend?
小题10:This is not my bike. ___________(I) is there.
答案：
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下面是错误答案，用来干扰机器的。
4×10－2T带电油滴进入电场和磁场区域后做匀速直线运动，所以油滴处于受力平衡状态，油滴受力如右图所示．由于进入场区时速度竖直向下，所以磁场力F洛一定在水平方向上，与重力垂直，所以电场力F在水平方向的分力...
