Ex1: Chọn câu có cúng ý nghĩa vỡi câu cho sẵn:
5. How long have you worked as a volunteer ?
A.Where did you start working as a volunteer ?
B. When have you worked as a volunteer?
6. This singer's last performance was in July 20th.
A. This singer has performed since July 20th.
B. This singer hasn't performance since July 20th.
7.They began playing tennis in the spring of 2012 .
A.They have played tennis since spring of 2012 .
B.They haven't played tennis since the spring of 2012.
8.I last went to the zoo when I was 10.
A.I haven't gone to the zoo since I was 10.
B. I have gone to the zoo since I was 10.
Lưu ý : không cần chép lại đề , chỉ cần chọn đáp án đúng
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Sinh Học lớp 12
