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1.She hasn't performed for ten years ago.
2.He spent nearly two hours doing the washing up.
3.It took him two hours to study for the test.
5.I last worked for him six months ago.
10.They spent two hours finishing their homework.
12,I haven't seen him since I was in high school.
Many of my students enjoy to surf the web in their free time. -> surfing (enjoy Ving)
Tell me what is wrong for doing this job. -> with (what is wrong with N/ Ving)
Printing was invented by the Chinese. (câu này mình ko thấy sai đâu á)
The number of the books in the library have risen to over five million. -> has (The number of N chia số ít, A number of N chia số nhiều)
1.She is more pretty than any other girls in the class
sửa : prettier
2.Your homework ought to do every day.
must be done
3.Have to we finish the talk about Marie Curie before ten?
=> Do we have
1 always are -> are always
2 to -> for
3 helping -> to help
4 in -> on
5 about -> of
6 was visiting -> visited
7 has dug ->was digging
8 forget -> forgetting
9 to -> of
10 sightseeings -> sightseeing
1 are having -> have
2 a -> bỏ
3 helping -> to help
4 in -> on
5 about -> of
6 was visiting -> visited
7 has dug -> had dug
8 forget -> forgetting
9 to -> of
10 sightseeings -> sightseeing
send => sent
finish => finished
(present perfect)