The student sat there, __________ what to do.[ ]

Thanks a lot for offering a great deal of _______ to me in my research.— It was my great pleasure.

h the number of Japanese army was _____ that of our Eighth Route Army, they lost the battle in that mountainous village.

The World Expo (世博会) in 2010 Shanghai was held. The theme of the Shanghai Expo is “______”.

There aren’t_______ Halloween parties in China, but there are_______ in the USA.