On such a hot day, nearly all the tourists to the beach couldn’t ____the desire to swim in the sea. [ ]

The Shanghai Expo Site covers a total area of 5.28 sq km, ______12 pavilion groups, of _____ Zone A hosts China Pavilion, and other national Pavilions for Asian countries except Southeast Asian ones.

The math problem is _______ hard for me ______ work out.

ong time ago, there was a mountain.At the top of the mountain___________, in which an old monk used to tellstories.

Is the letter from your mother?—Yes. But she ________ the letter herself, because she doesn’t even know one word.