Helen was much kinder to her youngest son than to the others， _____，of course，made the others envy him.
| A．who | B．that | C．what | D．which |
We had _________ great fun at the charity party yesterday. I have never had _________ more exciting experience.
| A．a, / | B．/, a | C．/, the | D．the, a |
The scientists were trying to look for all possible _______ as to where this species came from.
| A．signals | B．marks | C．clues | D．spots |
A well-written speech ______ a lot, such as a good choice of words, a clear
structure, a distinct theme, etc.
| A．calls on | B．calls for | C．calls up | D．calls off |
Lisa made a(n) _____ to help her husband with the problem, but failed in the end.
| A．promise | B．response | C．decision | D．attempt |
I am really sorry if my comments on the matter ____ you.
| A．beat | B．defeated | C．offended | D．Injured |