根据以下信息，写一份病假条：
你叫xx，20xx年10月21日向英语老师江老师请假。
内容：由于感冒今天不能来上1，2节的英语课。昨天淋了雨。晚上发烧，医生建议休息一两天，身体恢复后会立即去上课。请批准为盼。英语课结束后会给老师打电话。附上医生的证明。
关键词：证明：certificate
dear mr/ms jiang
i was unable to come to 1st and 2nd period today.due to the rain yesterday, i was wet and had temperature at night. the doctor adviced me to rest for several days and after my recovery, i will attend school as soon as possible.
i am sincerely sorry about the inconvenience. however, i would like to have your permission. also, afterwards i would phone you and there's the certificate by the doctor.
october 21st 20xx
[英语作文题：请假条]
