(2009年合肥市高三第一次教学质量检测)The police tried to get some clues from the suspect，but he remained     ．

（2010·宝鸡模拟） After watching the movie Avadar, Mary lay in bed with her eyes_______ open while all her family were_______asleep.

The young lady often makes meals ______ for herself for she is _____ about what she eats. 

John plays football _______, if not better than, David.

 With more and more farmers moving to cities, an inadequate labor force is    becoming a major factor affecting the country's grain output.