tom----- ------a-------with his friends in the evening.

is attending party
意为tom和朋友要去参加一个party.
再问： tom_____ ______a_______with his friends in the evening. 这道题？
再答： Tom is attending a party with his friends in the evening
再问： Tom 晚上和他的朋友聊天。 tom_____ ______a_______with his friends in the evening.
再答： Tom was having a talk with his friends in the evening. 我还以为是即兴答题呢。。