选用方框内的动词，并在答题卡标有题号的横线上，写出空缺处各动词的正确形式。

He    ▲   off the bike when he was riding it.
I’m not sure which hair style    ▲   me best.
He got up early this morning    ▲   the first bus.
Sally, go and see who    ▲   on the door.
You should study hard, or you    ▲   many good chances.