1)It is very necessary... English before going abroad. A:to study. B: studying. C: studied. D:have studied 2)Sydney Opera house...on the harbor in Australia many years ago. A:were build. B:was built. C: built. D:have been built 3)Lan...to collect stamps in 2001. A:began. B:begin. C:beggin. D:beggin 4)Mrs.Mai...when Tuan arrived home. A:cooked. B:is cooking. C:was cooking. D:cooks 5)The woman...to the principal is my form teaches. A:talks B:talked. C:talk. D:talking 6)In the...contes two team members had to make a fire in a Iraditional ways. A:fire-making. B:making-fire. C:fire make. C:make fire 7)cool the burns mincdiately so as to... tissue damage. A:minimizes. B:minimizing. C:minimize. D:minimized 8)I...my report at this time yesterday. A:wrote. B:was writing. C:writed. D:were