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11) Ba Be lake in Bac Kan is.......( larger/largest/the largest) natural lake in Viet Nam
12) There ......( is/are/have) about thirty students in my class
13) I think Spanish is ...... ( easier/more easy / the easiest) than Japanese
14) ......( Is there/There is / Are there ) many restaurants on this street ?
15) I always go to the pagoda and vistit my .....( relative/relations/relatives) during Tet holiday