A new er to join us in the game tomorrow.
A. is supposed
B. is supposing
C. supposed
D. supposes
网友回答
(答案→)A. is supposed
B. is supposing
C. supposed
D. supposes
解析：考查固定短语。句义：明天一个新来的人应该会加入我们的比赛。把握关键词：to join ,根据固定短语：be supposed to do sth ,应该做某事，所以A正确。