用括号里动词的适当形式填空
（1）It___(rain) very often here last month.
(2) The teacher____(call) me into her office an hour ago.
(3) The children ____(play) for two hours last Saturday afternoon.
(4) John____(run) 100 metres in 11 seconds(秒）.
(5)Mrs Li____(clean)her house every day.