The police were seeking more information to find out ________ the rich merchant.
| A．who was it that killed | B．who it was that killed |
| C．it was who killed | D．who was it killed |
. Do you think it ______ to attend the summer training courses run by the Sunday school?
| A．worth | B．worthy | C．worthwhile | D．worthy of |
Jim is old enough to look after the pet dog ______.
| A．correctly | B．rightly | C．properly | D．accurately |
I never dreamed of ______ such a big crowd here.
| A．there being | B．there to be | C．there having | D．there to have |
Many famous writers are reported ______ long before they started reading themselves.
| A．to have read to | B．to have been read to |
| C．having been read to | D．being read to |
Every time ______ I see the picture there, I think of my days in a remote mountain village.
| A．when | B．while | C．as | D．/ |