用所给词的适当形式填空（1）The players are getting ready for {#blank#}1{#/blank#} (play) a football match now.
（2）Don't talk to him. He {#blank#}2{#/blank#} (work) at the moment.
（3）—What are you doing? —I'm helping my brother {#blank#}3{#/blank#} (do) his homework.
（4）Look! What {#blank#}4{#/blank#} (happen) over there?
（5）We usually have three {#blank#}5{#/blank#} (meal) a day.
