根据句意，用所给的适当形式填空。 小题1:“Help _____________(you) to some fish．” Mrs．Black said to her guests． 小题2:Although he is in his _____________(ninety), he can do some farm work and look after himself well． 小题3:Neil Armstrong took some rock samples for _____________(far) research． 小题4:When the parade of Disney characters appeared, all tourists screamed with _______(excited)． 小题5:Beijing is in the _____________(north) part of our country．