Is this your pen—- _________. It’s her pen.

对下面两组句子中加线词的意思，判断正确的一项是（ ）①而皆背晋以归梁②君臣相顾，不知所归③尔其无忘乃父之志④与其所以失之者

_______ excited his parents most is that he had passedthe entrance exam and was admitted into his dream college.

regret _____ you that Tom failed to pass the driving test and that he really regretted ______ your advice on practicing more.

Annie wasn’t at school today because she had to stay at home to ________ her mother.