We spent hours driving and another few hours waiting, only _________ that the plane would be delayed until midnight.

. Jenny hopes that Mr. Smith will suggest a good way to have her written English __________ in a short period. 

_________ in the mountains for a week, the two students were finally saved by the local police.

Mr Reed made up his mind to devote all he had to _______ some schools for poor children.

__________ in central Shanxi Province, Pingyao is famous for its ancient city walls and its architecture which date from the Ming Dynasty.