29.—John, how did your English exam go?—I thought I ____, but in fact I came in the top 10% in the class.

As we all know, diligence is the path ________to happiness. ( )

There will be __________one-hour documentary on CCTV8 tonight.______one- hour documentary takes a close look at the life of tigers in India.

If we can _____ our present difficulties, then everything should be all right.

pay the bill by check— Sorry, sir. But it is the management rules of our hotel that payment ____ be made in cash.