Exercise 4: Mark the letter A, B, C, or D to indicate the underlined part that needs correction in each of the
Exercise 4: Mark the letter A, B, C, or D to indicate the underlined part that needs correction in each of the following questions.
Trả lời cho các câu 454914, 454915, 454916, 454917, 454918 dưới đây:
After many failures, the author has finally succeeded at having his novel published.
Đáp án đúng là: C
I worked on the problem for two days, but I still can't find any solution to it.
Đáp án đúng là: A
Before he took part in that reality show, Novak has appeared on TV several times.
Đáp án đúng là: C
Cameron insisted in getting the contract signed before leaving for the airport.
Đáp án đúng là: A
Mark has never used any social networking sites before his brother showed him how to create a Facebook account.
Đáp án đúng là: A
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