Why do you look so disappointed？- My cell can’t work. And I wonder how I can ___________ it.

These days the government has issued several economic policies that will ________ prosperity of manufacturing industry. [ ]

The old man was _______ sad _______ say a word when he heard the bad news.

16 Nothing taught by others can have thesame effect on you as _____ learned by yourself

The old photo reminds me __________ my childhood.