1)表示歉意:
2)解释具体原因,并希望他能谅解;
3)告诉他下次练习的时间、地点及话题。
注意: 1)词数100 左右;
2)可适当增加细节,以使行文连贯。
I am terribly sorry that I couldn't practice spoken Chinese with you this time. I should have told you in advance, but something happened beyond my expectation. My teacher called me to send his computer to his office. Unfortunately, my mobi