Mark the letter A, B, C, or D to indicate the correct answer to each of the following sentences.
_______ I didn't know how to do the job. But now I am making progress.
A.First of all
B.At the first
C.At first
D.First
_______ I didn't know how to do the job. But now I am making progress.
A.First of all
B.At the first
C.At first
D.First
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Hóa Học lớp 12
