Does Liu Hua serve in the army?—-No,but he ___in the army for three years

Jane, can I wear jeans and a T-shirt to the evening party? —OK. But a dress might be __.

How many students did you see playingin/on the playground________

_______ me when you get it through and I’ll pick you up at your work place．

With many problems ________, the newly selected president will have a hard time.