the party, i was the guest of honour

2musthaveleft是正确答案.肯定推测用must,推测过去的事时后加havedone.汤姆动身了吗?他说过他会参加这个聚会的.他肯定已动身了,他是个说话算话的人.

whenthepartyover,wewouldbebackanddowhatuse（我认为这个应该是used）todo当聚会结束时,我们将会回来并做我们之前做的事.

很高兴为你解答.1.Canyouorganizethepartygames?2.Therearemanywildflowersinthefield3.Helikeswearingjeansverymu

Bheadmasterandsecretary是两个人,应该用复数形式,begoingto是将要做某事,所以应该是aregoingto如果帮到你,请记得采纳,O(∩_∩)O谢谢