The number of deaths from heart disease will be reduced greatly if people_______ to eat more fruit and vegetables.

（2010·重庆模拟）—Alice, you look puzzled．Haven’t you understood it? —Yes．I _____of another problem just now． 

—Are you still busy? —Yes, I __________my work, and it won’t take long 

A group of children ______ hide and seek in the garden.

She stared at the painting,wonder where she ____it.