I can remember very few ______ when he had to cancel his plans because of poor health.

I think I have great writing ______, but it’s a pity that I don’t have a chance to realize it.

Faced with the hard financial ____________, all the countries in the world should learn to cooperate to get it over.

 He had ______ in finding Mr. Green’s house.

Peter is a brilliant language leaner. Within two weeks, he has developed a good _______ of Chinese and Japanese.