đặt câu hỏi với cụm từ |...|
1. This machine was made |in the nineteenth century|
2. my uncle has bought that house |for 5 years|
3.they were wet |because it rained heavily|
4. he has worked for that company |for 4 years|
5. the mail was delivered |at eight o'clock| last night
6. their house was built |in 1988|
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Sinh Học lớp 12
