知觉
参考答案：
是在感觉的基础上，把所感觉到的客观事物的各种个别属性联系起来，在人脑中产生的对该事物各种属性的综合整体反映。
When you are home, give a call to let me know you ________ safely.[ ]
A. are arriving
B. have arrived
C. had arrived
D. will arrive
I _____ as soon as you come back.
A．went
B．have gone
C．am going
D．shall go
