单项选择题
A.You can't ask me
B.Pardon? I have no idea
C.Please don't say so
D.Sorry, I don't know, but you can ask the man over there
未知题型 -Excuse me, is this seat free? -( ).No, you can't sit hereB: Sorry, it is takenC: Yes, it is seated by a boyD: Yes, but I don't know
单项选择题 法国在教育行政方面实行的是()体制。
未知题型 By 2050 the level of industrial pollution ( )dangerous levels in many cities.will have reachB: will has reachedC: will have reachedD: will reach