It’s said to be a case of murder_______ the children were used by adults.
| A．when | B．where | C．which | D．that |
The well was found __________ when we got there.
| A．digging | B．to be dug | C．to dig | D．being dug |
Professor Smith told me that the book was well worth ________.
| A．reading | B．to be read | C．to read | D．being read |
He was about to tell me the secret _________ someone patted him on the shoulder.
| A．as | B．until | C．while | D．when |
The bird was lucky that it just missed __________ .
| A．catching | B．being caught | C．to be caught | D．to catch |
Tom found out his parents weren’t well, so he went back to _____ for a while.
| A．take out | B．work out | C．help out | D．carry out |