词语运用A.用括号中所给词的适当形式完成下列句子．
【小题1】Little Tom has just celebrated his_____ birthday．（nine）
【小题2】I offered my seat to an elderly man，but he refused_____．（polite）
【小题3】LEGO is one of the_____ that can develop children's creativity．（toy）
【小题4】I don't use my mobile phone a lot at night，as its blue light is_____to my eyes．（harm）
【小题5】Mr．Zhang，your_____is excellent！Have you ever studied abroad？（pronounce）
【小题6】Visitors are asked not_____much noise in the National Gallery．（make）