作业帮英语——SMJ专项练习现在完成时专项练习：—、下列句子均有一出错误,找出并改正.1.I haven't heard a letter from my pen pal for a few months.2.Sorry,I haven't seen the notice this morning,so I was late.
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英语——SMJ专项练习现在完成时专项练习：—、下列句子均有一出错误,找出并改正.1.I haven't heard a letter from my pen pal for a few months.2.Sorry,I haven't seen the notice this morning,so I was late.
英语——SMJ专项练习
现在完成时专项练习：
—、下列句子均有一出错误,找出并改正.
1.I haven't heard a letter from my pen pal for a few months.
2.Sorry,I haven't seen the notice this morning,so I was late.
英语——SMJ专项练习现在完成时专项练习：—、下列句子均有一出错误,找出并改正.1.I haven't heard a letter from my pen pal for a few months.2.Sorry,I haven't seen the notice this morning,so I was late.
1.I haven't heard a letter from my pen pal for a few months.
把a letter 去掉,词组hear from本身就有“收到某人的信”的意思
正确句子I haven't heard from my pen pal for a few months.
2.Sorry,I haven't seen the notice this morning,so I was late.
时态错了,应该是一般过去时,而不是现在完成时
正确句子Sorry,I didn't see the notice this morning,so I was late.
1.heard-got
2.was-am
1.去掉 a letter
2.haven't seen 改为didn't see
1 heard---received
2 haven't seen---didn't see
1.去掉a letter
2.haven't seen改为didn't see：现在完成时态是不能与表示具体的时间状语（this morning, yesterday等）连用的。
1. 收到信件不用 heard a letter 而是应该 receive a letter.
2. 时态不正确，so I was late 是过去时，所以前面应该用 I had't seen the notice.
heard---received
haven't seen---didn't see