14.Jane's boss asked if there were any messages for her.
15. The boy asked him when the Socialist Republic of Vietnam had come into being.
16. Janet's boss reminded her not to forget to post these letters
are=>were
is, am=>was
Câu tường thuật dạng câu hỏi Wh- question
WH+S+V(lùi thì)
Câu tường thuật dạng mệnh lệnh, yêu cầu
S+ asked, told,.. +O+ (not) to V
