The last time my friend wrote a letter to me was in February.
A. I haven't never received a letter from my friend since February.
B. I last received a letter from my friend in February.
C. It was in February since I first received a letter from my friend.
D. My friend last wrote a letter to me when in February.
30. I started writing this essay hours ago and it's still not right.
A. I have been writing this essay for hours and it's still not right.
B. It' s hours ago since I last wrote this essay correctly.
C. The last time I started writing this essay was hours ago, which is still not right.
D. I didn't stop to write this essay hours ago and it's still not right.