Some pre-school children go to a day care center, __________ they learn simple games and songs.
| A．then | B．there | C．while | D．where |
When I got back home I saw a message pinned to the door ______“Sorry to miss you; will call later.”
| A．reading | B．reads | C．to read | D．read |
This picture was taken a long time ago. I wonder if you can ________ my father.
| A．find out | B．look out | C．speak out | D．pick out |
My point is that you must do ____________ is best for you.
| A．whatever | B．however | C．no matter what | D．no matter how |
_____ to the party, Joan was greatly hurt.
| A．Having not been invited. | B．Having not invited |
| C．Not having been invited | D．Not having invited |
________we went to visit Professor Smith, he________his research work.
| A．The first time; devoted to | B．Whenever; was concentrate on |
| C．For the first time; was busy with | D．Each time; was absorbed in |