adv of clauses

1)when(khi):khi when duoc noi giua 2 menh de . +khi hanh dong o hien tai,thi sau when luon o hien tai ,truoc when co the hien tai hoac tuong lai (chu yeu o hien tai)va chi theo thi cua hanh dong do +khi hanh dong xay ra o qua khu thi hanh dong nao xay ra truoc chia thi QKTD hanh dong xay ra sau chia thi QKD(khi hanh dong do co tinh dung lai de roi tiep tuc)hoac chia o thi QKHT (khi hanh dong do dung han) 2)while(trong...