We had a lot of delicious food ______ the picnic.
| A．on | B．in | C．at | D．of |
I_________ a worker, but now I am an actor.
| A．used to be | B．used to being |
| C．was used to be | D．was used to being |
He must be in the room, because the light in the room is__________.
| A．open | B．on | C．off | D．in |
Girls are afraid of math .They think they have some learning it .
| A．questions | B．problems | C．problem | D．troubles |
His parents were worried that he too much time chatting on line.
| A．spent | B．cost | C．paid | D．had |
I__________ Lucy at the bank the other day.
| A．see | B．saw | C．was seen | D．seeing |