the difference between the two research findings will be one of the worst mistakes you make.
| A． | Ignore | B． | Ignoring |
| C． | Ignored | D． | Having ignored |
_____ he thought he was helping us with the work , he was actually in the way.
| A．Because | B．If | C．Although | D．When |
The most exciting thing for him was_____ he finally found two tinned fruits in_____ seemed to him to be a servant’s bedroom.
| A．that; what | B．what; what | C．that; that | D．what; that |
_____ surprised me most was______ they had finished the so quickly.
| A．What; what | B．That; that | C．That; what | D．What; that |
____ seems strange to us is ______ she can sing so many English songs beautifully.
| A．It; that | B．That; how | C．It; Why | D．What; that |
My parents used _____ they had to get a new car for my brother.
| A．what | B．which | C．all what | D．不填 |