56．Look!Someone ________(lie) on the floor.
57．It __________(rain) harder now.It ________(rain) quite often in summer.58．Here _______(come) the bus.
59．I don’t know when the manager ________(return),but when be _________(come) back I _________(let) you know.
60．“Where ________(be) you this time yesterday?”
“I________(be) at home.I _______(go) over my lessons then.”