Dear Peter,
Thanks very much on inviting me to your birthday 86. ________
party on Sunday. I'd like very much come but 87. ________
I had an examination on Monday morning. It is 88. ________
a very important exam but I can't afford to 89. ________
fail it. I'll spend all the whole weekend reading 90. ________
and prepare for it. So I'm really sorry that 91. ________
I won't be able to come in this time. Hope you 92. ________
can understand. I'll take this chance to wish 93. ________
you wonderful time on your birthday. Happy 94. ________
birthday, Peter, and many happy return of the day! 95. ________
Yours,
Li Ming
