書名：寂天挑戰新多益2
頁數：p.22 no.14@
題目：June 8-At a press conference on
Monday , Amanda Doolittle , the event
director for the Blackridge Country Fair , ________ that pop sensation Max Avery will be giving a performance on the final night of the fair.
(A) confirming
(B) is confirming
(C) confirmed
(D) was confirmed
為甚麼答案是C 被動 被確認的意思嗎？我的答案是B是說我也不知道be +ving 是甚麼意思