41-46题,英语大神来,快 

为你解答.
41、I wondered if the meeting had begun.
42、I felt very lonely because I didn't have any close friends.
43、Have you replied Uncle Wang's last letter?
44、We had no choice but to keep silence.
45、We will stop him doing such heavy work because he is badly ill.
46、Have your parents been married for forty years?

41 whether the meeting has begun already or not.
42 I feel lonely without close frined.
43 Have you wrote back to Uncle Wang's last letter?
44 We have to keep silence since no other choice...