Question

I invited my teachers __________ my birthday party.
A. to join in              B. join in         C. to join

Answer 1

C

试题分析：句意为：我邀请我的老师参加我的生日派对。invite sb to do sth：邀请某人做某事，join是及物动词，后可直接接宾语。故应选C。