If/ you/ not help/ II not meet/ her/ last week. . a. If you don't help me, I couldn't meet her last week. b. If you' didn't help me, I

If/ you/ not help/ II not meet/ her/ last week. .
a. If you don't help me, I couldn't meet her last week.
b. If you' didn't help me, I couldn't meet her last week.
c. If you hadn't helped me, I couldn't meet her last week.
d. If you hadn't helped me, I couldn't have met her last week.

Đáp án: D
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Đề bài Choose the answer that is nearest in meaning to the sentence printed before.