A-A+
Why do they use their school envelopes？A．Becau
问题详情
Why do they use their school envelopes？
A．Because their school envelopes are very big.
B．Because the postage is paid.
C．Because the postage is more cheaper.请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：B
解析：该对话中女士叫男士用自己学校的信封，因为学校信封的邮资已付。这里"Lookhere，PostagePaid．"是解题的关键。[A]选项是因为他们学校的信封很大，这是错误项；[B]选项是因为学校信封的邮资已付；[C]选项因为学校信封的邮资更便宜，这是干扰项。所以正确答案为[B]选项。
