高一英语 动名词完成时1.In order not to be disturbed i spent three hour

高一英语 动名词完成时
1.In order not to be disturbed i spent three hours_____in mu study
A.locking
B.locked
C.to lock
D.being locked
(在这里i spent three hours 做社么成分)
2.When she entered the room, she found her son _____in the sofa and _____TV
A.seated...watched
B.seated...watching
C.sitting...watched
D.seating...watching
3.The polite asked all the passenger on board to remain ____as the plane was making a landing
A.seat
B.seating
C.seated
D.th be seating
remain ,keep 是不是都应该加"ed"的 表一中状态啊,这样解释对么
4.The manager,_____it clearly to us that he didn't agree with us, left the meeting
A.who has made
B.having made
C.made
D.making
, ., 可做从句和什么啊老师讲得太快没听清楚 请高人指点一下