【单选题】He has been on Sam and John______ with me for 17 years.
【单选题】Sorry,he is out.He has been on vocation recently(最近).
【单选题】从钢琴改编曲《山丹丹开花红艳艳》和声上看,其中的引子部分是由一整段的琶音和弦构成,主要旋律是民族器乐 独奏,隐藏在这些分解和弦中,具有民族五声风格。这些分解和弦模仿 奏法。
【单选题】A.He has been on vacation the whole month.B.He finds the work as hard as ever.###
A.
He has been on vacation the whole month.
B.
He finds the work as hard as ever.
C.
He has benefited from file womans help.
D.
Hes thinking of working for the woman.
【单选题】He has been on _______ missions. Nobody knows where he is.