下面是我们熟悉的四个交通标志图形,请从几何图形的性质考虑,哪一个与其他三个不同请指出这个图形,并说明理由.答:这个图形是:____ (写出序号即可),理由是____
用适当的介词填空
(1)He was born____ a cold morning.
(2)The girl began to learn to play the piano____ an early age.
(3)The beautiful music was____ Gu Jianfen.
(4)We often watch concerts____ TV.
(5)The boy can play all types____ instruments(乐器).