Tom is very naughty.Look!He is putting ___ insect into his deskmate's schoolbag.用 an 和 the 填空,应该用哪个呢?请注意下,谈话双方都知道的事物应该用什么.

问题描述:

Tom is very naughty.Look!He is putting ___ insect into his deskmate's schoolbag.
用 an 和 the 填空,应该用哪个呢?请注意下,谈话双方都知道的事物应该用什么.