Could you tell us ______ happens when one student in class expresses a personal opinion _______ maybe upsets other students?
| A．that; that | B．what; where | C．that; where | D．what; that |
Our manager never fails to answer a phone call ______ she is very busy.
| A．since | B．once | C．even if | D．so that |
Because of the lack of funds, the tunnel project has already fallen behind ________.
| A．situation | B．speed | C．insurance | D．schedule |
The book is rather highly priced, but so well worth ______ that it should be begged or borrowed rather than missed.
| A．to read | B．to be read | C．reading | D．being read |
It was on the last day ______ a press conference was held by some committee members.
| A．where | B．that | C．when | D．how |
---What does Old Walter usually do in his retirement?
---- These days he is ______ memories of village life for his new book.
| A．putting up | B．putting on | C．setting up | D．setting down |