17.　 The head asked him how long/soon would it take them to complete the whole project.

16.　 It is said that his health is destroyed / affecting by years of hard working.

15.　 The lion is the signal / symbol of courage.

14.　 When completed/ being completed, the museum will be open to the public next year.

13.　 What he said just now informed / reminded me of hat American professor.

12.　 What the doctors really doubt is whether / why my mother will recover from the serious disease soon.

11.　 He proved himself a true gentleman and the beauty of character / appearance was seen at its best when he worked with others.

10.　 --Your MP3 looks nice. Can I borrow it? Yes, help yourself/ go ahead.

9.　　　 Jack asked his brother if he knows / whether he knew Betty.

8.　　　 I have neither a raincoat nor an umbrella. That’s why I have to/ought to wait until the rain stops.