1:Though he was very tired,( )he went on ( )

1:Though he was very tired,( )he went on ( )
A./;working B.but;working 答案选A的,不要BUT吗
2：An exhibition of paintings ( )at the museum next week.
A.is to be held B.will hold 为什么会选A呢,B不是将来式吗.怎么不对
3：（ ）that they can pass the exam this time.
A.It is hoped B.It hopes 为什么选A不选B,我完全不懂
4：（ ）to have been rich.
A.They say B.He is said C.It is said D.That was said 怎么选B呢,
5：I ( ) in English.
A.deeply interested B.was deeply interesting C.am interested deeply
D.deeply interest myself 怎么选D呢!