1.How age is your elder sister?





2.Have you finished reading the book which I lend you last week?





3.Last summer my family went camp in Do Son.





4.Marie Curie, whose discover of radium made her famous , was a French physicist .





5.The room is such dirty that it needs cleaning immediately .





6.Do you know when _____?





7.He walked slowly _____.





8.Although the sun was shining, ______.





9.They took the robber to the police station ______.





10._____ your relatives in England?