He       have come here yesterday,        he?

The biggest problem for most plants, which ______ just get up and run away when threatened, is that animals like to eat them.

She is too thin. She _______ gain some weight but she ______ too little. 

Thank you very much. Without your help we ______ car started.

—What is an ideal team leader like?—He ______ be responsible, determined and creative．