用行为动词的适当形式填空（答案已给出,只需说明这样写的原因）大神们帮帮忙

用行为动词的适当形式填空（答案已给出,只需说明这样写的原因）大神们帮帮忙
1.I [have finished](finish) all my work before I [left] (leave).2.I am afraid there [is going to be](be) a meeting this afternoon.3.Don't go out.It [is raining](rain) now.4.Listen!Someone [is crying](cry) in the next room.5.Wei Fang is ill.She [is staying](stay) in bed now.6.It's Sunday morning.Some children [are having](have) a good time in the park.7.These days we [have gone](go) over our maths lesson.8.The summer holiday [is coming](come) soon.The students [are thinking](think) of the traveling.中括号里是答案,小括号是给出的动词原形 虽然多了些,辛苦了,