50．I wanted to know 　　　　　　　　?

A．whether they have made a mistake or not

B．how we could download the information

C．that he graduated from Beijing University

D．why did the journalist interview the ordinary worker

49．-- 　　　　　　　？

--Yes, go along this road and take the third turning on the left．

A．How far is the station　　　　　　　　　　　　　 　　　 B．Which bus can I take

C．Is there a station near here　　　　　　　　　　 　　　 D．Where is the station

48．--I’m sorry to have kept you waiting long．

--Never mind．I 　　　　here for only a few minutes．

A．have been　　　　　　　 　　　 B．have come　　　　　　　　　　 C．have arrived　　　　　　 D．waited

47．--Mrs. Smith seems to like sweets．

--　 　　　．That’s probably why I’m also becoming fatter and fatter．

A．So I do　　　　　　　　　 　　　 B．So do I　　　　　　　　　 C．So am I　　　　　　　　　 D．So I am

46．There is hardly any rain this summer, 　　　?

A．isn’t it　　　　　　　　　　 　　　 B．is it　　　　　　　　　　　　 C．isn’t there　　　　　　　 D．is there