hi,
This is a sentence in a letter
I use "sent" in my homework...., but my teacher said I should use "send"...
I think if I use "had" in the first half of the sentence, I should use past tense in the second half of the sentence also.
any reason?
send ot sent is correct?
更新1:
which of the following are wrong? which of the following is the best? If you have qusetions, you can send me a letter. If you have qusetions, you could send me a letter. If you had any further qusetion, please send me a letter. If you had any further qusetion, please sent me a letter.